How do i fix this internal server error?

Screenshot 2022-01-31 081346
i am new to nextcloud, and trying to install one on windows. And here is the access log

127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/apps/files_videoplayer/js/files_videoplayer-main.js?v=d099ea77-0 HTTP/1.1” 200 19823 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”
127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/core/js/dist/files_client.js?v=d099ea77-0 HTTP/1.1” 200 43246 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”
127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/core/js/dist/recommendedapps.js?v=d099ea77-0 HTTP/1.1” 200 59096 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”
127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/core/js/dist/main.js?v=d099ea77-0 HTTP/1.1” 200 487321 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”
127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/index.php/apps/theming/styles?v=0 HTTP/1.1” 500 4722 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”
127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/index.php/js/core/merged-template-prepend.js?v=d099ea77-0 HTTP/1.1” 500 4722 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”
127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/index.php/settings/apps/list HTTP/1.1” 412 803 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”
127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/cron.php HTTP/1.1” 200 905 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”
127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/core/img/favicon-touch.png HTTP/1.1” 200 4482 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”
127.0.0.1 - - [31/Jan/2022:08:05:43 +0700] “GET /nextcloud/core/img/favicon.ico HTTP/1.1” 200 3562 “-” “Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0”

[Mon Jan 31 07:42:18.948553 2022] [mpm_prefork:notice] [pid 2094] AH00163: Apache/2.4.29 (Ubuntu) configured – resuming normal operations
[Mon Jan 31 07:42:18.948661 2022] [core:notice] [pid 2094] AH00094: Command line: ‘/usr/sbin/apache2’
[Mon Jan 31 07:43:14.446664 2022] [mpm_prefork:notice] [pid 2094] AH00171: Graceful restart requested, doing restart
[Mon Jan 31 07:43:14.508113 2022] [mpm_prefork:notice] [pid 2094] AH00163: Apache/2.4.29 (Ubuntu) configured – resuming normal operations
[Mon Jan 31 07:43:14.508140 2022] [core:notice] [pid 2094] AH00094: Command line: ‘/usr/sbin/apache2’
[Mon Jan 31 07:48:26.917384 2022] [mpm_prefork:notice] [pid 2094] AH00169: caught SIGTERM, shutting down
[Mon Jan 31 07:48:28.251929 2022] [mpm_prefork:notice] [pid 3087] AH00163: Apache/2.4.29 (Ubuntu) configured – resuming normal operations
[Mon Jan 31 07:48:28.251998 2022] [core:notice] [pid 3087] AH00094: Command line: ‘/usr/sbin/apache2’
Here is the error log

Are you trying to install Nextcloud Server on IIS ? If yes, it’s not compatible, you can’t do it on Windows IIS.