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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:
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Or for longer, use three backticks above and below the code snippet:
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Some or all of the below information will be requested if it isnât supplied; for fastest response please provide as much as you can 
Nextcloud version (eg, 20.0.5): 23.0.6.1
Operating system and version (eg, Ubuntu 20.04): Debian Buster with Armbian Linux \l . 4.14.133-odroidxu4 (armv7l)
Apache or nginx version (eg, Apache 2.4.25): replace me
PHP version (eg, 7.4): replace me
The issue you are facing:
Hello all,
last week my ncp was automatically updated and then nextcloud not longer running. I donât know how to continue
Nextcloudpi is running on an odroid hc2
I have Updated Nextcloudpi version, even as the linux version on the odroid in mean timeâŚ
Any Ideas what the issue could be?
See Ncp diagnostivs beyondâŚ
details>
NextCloudPi version v1.50.0
NextCloudPi image NextCloudPi_08-02-19
OS Debian Buster with Armbian Linux \l . 4.14.133-odroidxu4 (armv7l)
automount yes
USB devices sda
datadir /media/USBdrive/ncdata
data in SD no
data filesystem btrfs
data disk usage 1.3T/5.5T
rootfs usage 5.1G/7.0G
swapfile /var/swap
dbdir /media/USBdrive/ncdatabase
Nextcloud check error
HTTPD service up
PHP service up
MariaDB service up
Redis service down
HPB service down
Postfix service up
Internet check ok
public IP ***REMOVED SENSITIVE VALUE***
public IP ***REMOVED SENSITIVE VALUE***
Port check 80 closed
Port check 443 closed
IP ***REMOVED SENSITIVE VALUE***
Gateway 192.168.188.1
Interface enx001e0636814e
certificates ***REMOVED SENSITIVE VALUE***
NAT loopback no
Uptime 12min
Nextcloud configuration
An unhandled exception has been thrown:
RedisException: No such file or directory in /var/www/nextcloud/lib/private/RedisFactory.php:137
Stack trace:
#0 /var/www/nextcloud/lib/private/RedisFactory.php(137): Redis->pconnect()
#1 /var/www/nextcloud/lib/private/RedisFactory.php(178): OC\RedisFactory->create()
#2 /var/www/nextcloud/lib/private/Memcache/Redis.php(43): OC\RedisFactory->getInstance()
#3 /var/www/nextcloud/lib/private/Memcache/Factory.php(118): OC\Memcache\Redis->__construct()
#4 /var/www/nextcloud/lib/private/Server.php(1106): OC\Memcache\Factory->createLocking()
#5 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(162): OC\Server->OC\{closure}()
#6 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#7 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(129): Pimple\Container->offsetGet()
#8 /var/www/nextcloud/lib/private/ServerContainer.php(136): OC\AppFramework\Utility\SimpleContainer->query()
#9 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(57): OC\ServerContainer->query()
#10 /var/www/nextcloud/lib/private/Server.php(2082): OC\AppFramework\Utility\SimpleContainer->get()
#11 /var/www/nextcloud/lib/private/Files/View.php(122): OC\Server->getLockingProvider()
#12 /var/www/nextcloud/lib/private/Server.php(454): OC\Files\View->__construct()
#13 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(162): OC\Server->OC\{closure}()
#14 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#15 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(129): Pimple\Container->offsetGet()
#16 /var/www/nextcloud/lib/private/ServerContainer.php(136): OC\AppFramework\Utility\SimpleContainer->query()
#17 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(57): OC\ServerContainer->query()
#18 /var/www/nextcloud/lib/private/Server.php(1445): OC\AppFramework\Utility\SimpleContainer->get()
#19 /var/www/nextcloud/lib/base.php(602): OC\Server->boot()
#20 /var/www/nextcloud/lib/base.php(1104): OC::init()
#21 /var/www/nextcloud/console.php(48): require_once('/var/www/nextcl...')
#22 /var/www/nextcloud/occ(11): require_once('/var/www/nextcl...')
#23 {main}
Is this the first time youâve seen this error? (Y/N): Y
Steps to replicate it:
The output of your Nextcloud log in Admin > Logging:
PASTE HERE
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
PASTE HERE
The output of your Apache/nginx/system log in /var/log/____:
PASTE HERE
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.
PASTE HERE