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Sorry to hear you’re facing problems 
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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
longer
example
here
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can 
Nextcloud version (eg, 20.0.5): 24.0.6
Operating system and version (eg, Ubuntu 20.04): Ubuntu 20.04
Apache or nginx version (eg, Apache 2.4.25): 2.4.41
PHP version (eg, 7.4): 7.4
The issue you are facing:
Is this the first time you’ve seen this error? (Y/N):Y
Steps to replicate it:
- Upload text file to nextcloud
- Use nextcloud to open text file.
- If text content is chinese.It’s will show wrong code.
The output of your Nextcloud log in Admin > Logging:
Error core Tried to log in akong but could not verify token
2022-10-12T09:57:16+0800
Error PHP Zend OPcache can't be temporary enabled (it may be only disabled till the end of request) at Unknown#0
2022-10-12T09:55:00+0800
Error PHP Zend OPcache can't be temporary enabled (it may be only disabled till the end of request) at Unknown#0
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'instanceid' => 'ocg754201f9q',
'passwordsalt' => '********',
'secret' => '********',
'trusted_domains' =>
array (
0 => '********',
),
'datadirectory' => '/home/users/akong/www/*******/cloud/data',
'dbtype' => 'mysql',
'version' => '24.0.6.1',
'overwrite.cli.url' => '*******',
'dbname' => '*****',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => '*****',
'dbpassword' => '*******',
'installed' => true,
'defaultapp' => 'apporder',
'mail_smtpmode' => 'smtp',
'mail_smtpsecure' => 'tls',
'mail_sendmailmode' => 'smtp',
'mail_from_address' => 'akong',
'mail_domain' => '***',
'mail_smtpauthtype' => 'LOGIN',
'mail_smtpauth' => 1,
'mail_smtphost' => '****',
'mail_smtpport' => '587',
'mail_smtpname' => '***@***',
'mail_smtppassword' => '******',
'enable_previews' => true,
'enabledPreviewProviders' =>
array (
0 => 'OC\\Preview\\Image',
1 => 'OC\\Preview\\Movie',
2 => 'OC\\Preview\\TXT',
),
'default_phone_region' => 'TW',
'memcache.locking' => '\OC\Memcache\Redis',
'redis' => [
'host' => '/var/run/redis/redis-server.sock',
'port' => 0,
],
'memcache.local' => '\OC\Memcache\APCu',
'memcache.distributed' => '\OC\Memcache\Memcached',
'memcached_servers' =>
array (
0 =>
array (
0 => 'localhost',
1 => 11211,
),
),
);
The output of your Apache/nginx/system log in /var/log/____:
220.130.148.52 - - [12/Oct/2022:10:08:24 +0800] "POST /index.php/apps/text/session/sync HTTP/2.0" 200 247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 296 933
220.130.148.52 - - [12/Oct/2022:10:08:26 +0800] "POST /index.php/apps/text/session/sync HTTP/2.0" 200 247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 292 933
220.130.148.52 - - [12/Oct/2022:10:08:27 +0800] "POST /index.php/apps/text/session/sync HTTP/2.0" 200 247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 292 933
220.130.148.52 - - [12/Oct/2022:10:08:28 +0800] "POST /index.php/apps/text/session/sync HTTP/2.0" 200 247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 292 933
220.130.148.52 - - [12/Oct/2022:10:08:30 +0800] "PROPFIND /remote.php/dav/files/akong/ HTTP/1.1" 207 236 "-" "Mozilla/5.0 (Windows) mirall/3.4.1stable-Win64 (build 20211221) (Nextcloud, windows-10.0.22000 ClientArchitecture: x86_64 OsArchitecture: x86_64)" 1606 6416
220.130.148.52 - - [12/Oct/2022:10:08:31 +0800] "POST /index.php/apps/text/session/sync HTTP/2.0" 200 247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 292 933
220.130.148.52 - - [12/Oct/2022:10:08:32 +0800] "POST /index.php/apps/text/session/sync HTTP/2.0" 200 247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 714 933
220.130.148.52 - - [12/Oct/2022:10:08:34 +0800] "POST /index.php/apps/text/session/close HTTP/2.0" 200 22 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 218 707
220.130.148.52 - - [12/Oct/2022:10:08:36 +0800] "GET /index.php/core/preview?fileId=8245&c=efe4765d262933fb195bc0449a38aaaf&x=250&y=250&forceIcon=0&a=0 HTTP/2.0" 404 2 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 163 666
220.130.148.52 - - [12/Oct/2022:10:08:37 +0800] "GET /index.php/core/preview?fileId=8402&c=c4cee8d83f12bd8fbfa2f881f2defd13&x=250&y=250&forceIcon=0&a=0 HTTP/2.0" 404 2 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 248 666
220.130.148.52 - - [12/Oct/2022:10:08:39 +0800] "PROPFIND /remote.php/dav/files/akong/%E4%B8%8A%E6%B5%B7IP%E5%88%97%E8%A1%A8.txt HTTP/2.0" 207 572 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 806 1275
220.130.148.52 - - [12/Oct/2022:10:08:40 +0800] "PUT /index.php/apps/text/session/create HTTP/2.0" 200 459 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 215 1145
220.130.148.52 - - [12/Oct/2022:10:08:40 +0800] "POST /index.php/apps/text/session/sync HTTP/2.0" 200 247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 292 933
220.130.148.52 - - [12/Oct/2022:10:08:45 +0800] "GET /ocs/v2.php/apps/notifications/api/v2/notifications HTTP/2.0" 304 - "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 121 167
220.130.148.52 - - [12/Oct/2022:10:08:47 +0800] "POST /index.php/apps/text/session/sync HTTP/2.0" 200 247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 1564 933
192.168.50.5 - - [12/Oct/2022:10:08:46 +0800] "GET / HTTP/2.0" 200 17834 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0" 107 18400
219.85.234.20 - - [12/Oct/2022:10:08:51 +0800] "PROPFIND /remote.php/dav/files/akong/ HTTP/1.1" 207 236 "-" "Mozilla/5.0 (Windows) mirall/3.4.1stable-Win64 (build 20211221) (Nextcloud, windows-10.0.22000 ClientArchitecture: x86_64 OsArchitecture: x86_64)" 1610 6416
220.130.148.52 - - [12/Oct/2022:10:08:52 +0800] "POST /index.php/apps/text/session/sync HTTP/2.0" 200 247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0" 292 933
PASTE HERE
Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.
{"reqId":"dpW9puOkTwPT1NePsb7k","level":3,"time":"2022-10-12T02:37:00+00:00","remoteAddr":"220.130.148.52","user":"akong","app":"PHP","method":"POST","url":"/index.php/apps/text/session/sync","message":"Zend OPcache can't be temporary enabled (it may be only disabled till the end of request) at Unknown#0","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0","version":"24.0.6.1","data":{"app":"PHP"}}
{"reqId":"2Y6msef1P9O6spfLLrT6","level":3,"time":"2022-10-12T02:37:00+00:00","remoteAddr":"220.130.148.52","user":"akong","app":"PHP","method":"PROPFIND","url":"/remote.php/dav/files/akong/","message":"Zend OPcache can't be temporary enabled (it may be only disabled till the end of request) at Unknown#0","userAgent":"Mozilla/5.0 (Windows) mirall/3.4.1stable-Win64 (build 20211221) (Nextcloud, windows-10.0.22000 ClientArchitecture: x86_64 OsArchitecture: x86_64)","version":"24.0.6.1","data":{"app":"PHP"}}
{"reqId":"ZIGrhBXSqUZqrpJuL3nK","level":3,"time":"2022-10-12T02:38:09+00:00","remoteAddr":"220.130.148.52","user":"akong","app":"PHP","method":"POST","url":"/index.php/apps/text/session/sync","message":"Zend OPcache can't be temporary enabled (it may be only disabled till the end of request) at Unknown#0","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0","version":"24.0.6.1","data":{"app":"PHP"}}
{"reqId":"4azBbb1NCg8GCVOwKAwf","level":3,"time":"2022-10-12T02:39:14+00:00","remoteAddr":"220.130.148.52","user":"akong","app":"PHP","method":"POST","url":"/index.php/apps/text/session/close","message":"Zend OPcache can't be temporary enabled (it may be only disabled till the end of request) at Unknown#0","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0","version":"24.0.6.1","data":{"app":"PHP"}
