OnlyOffice just keep loading

I have a problem with a fresh install. I can’t seem to open any document: doc, odt, xls, etc. It just keeps loading.
The same thing happens when I add a new document.

This is what I see on my nextcloud.log:

{“reqId”:“YiyA@3xtHkGyfL3H8xCcOwAAAAg”,“level”:3,“time”:“2022-03-12T11:16:11+00:00”,“remoteAddr”:“15.20.25.35”,“user”:“nextcloudadmin”,“app”:“PHP”,“method”:“POST”,“url”:"/pwc/index.php/apps/theming/ajax/updateStylesheet",“message”:“unlink(/home/myuser/mydatadir/appdata_oc7eln9hgilf/css/theming/f5a2-1429-theming.css.deps): No such file or directory at /home/myuser/public_html/pwc/lib/private/Files/Storage/Local.php#291”,“userAgent”:“Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0”,“version”:“23.0.2.1”,“exception”:{“Exception”:“Error”,“Message”:“unlink(/home/myuser/mydatadir/appdata_oc7eln9hgilf/css/theming/f5a2-1429-theming.css.deps): No such file or directory at /home/myuser/public_html/pwc/lib/private/Files/Storage/Local.php#291”,“Code”:0,“Trace”:[{“function”:“onError”,“class”:“OC\Log\ErrorHandler”,“type”:"::"},{“file”:"/home/myuser/public_html/pwc/lib/private/Files/Storage/Local.php",“line”:291,“function”:“unlink”},{“function”:“unlink”,“class”:“OC\Files\Storage\Local”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/apps/files_trashbin/lib/Storage.php",“line”:193,“function”:“call_user_func”},{“file”:"/home/myuser/public_html/pwc/apps/files_trashbin/lib/Storage.php",“line”:102,“function”:“doDelete”,“class”:“OCA\Files_Trashbin\Storage”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/Files/View.php",“line”:1171,“function”:“unlink”,“class”:“OCA\Files_Trashbin\Storage”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/Files/View.php",“line”:728,“function”:“basicOperation”,“class”:“OC\Files\View”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/Files/Node/File.php",“line”:131,“function”:“unlink”,“class”:“OC\Files\View”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/Files/SimpleFS/SimpleFile.php",“line”:149,“function”:“delete”,“class”:“OC\Files\Node\File”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/Template/SCSSCacher.php",“line”:397,“function”:“delete”,“class”:“OC\Files\SimpleFS\SimpleFile”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/Template/SCSSCacher.php",“line”:289,“function”:“resetCache”,“class”:“OC\Template\SCSSCacher”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/Template/SCSSCacher.php",“line”:153,“function”:“variablesChanged”,“class”:“OC\Template\SCSSCacher”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/apps/theming/lib/Controller/ThemingController.php",“line”:189,“function”:“process”,“class”:“OC\Template\SCSSCacher”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/AppFramework/Http/Dispatcher.php",“line”:217,“function”:“updateStylesheet”,“class”:“OCA\Theming\Controller\ThemingController”,“type”:"->",“args”:["*** sensitive parameters replaced ***"]},{“file”:"/home/myuser/public_html/pwc/lib/private/AppFramework/Http/Dispatcher.php",“line”:126,“function”:“executeController”,“class”:“OC\AppFramework\Http\Dispatcher”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/AppFramework/App.php",“line”:157,“function”:“dispatch”,“class”:“OC\AppFramework\Http\Dispatcher”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/lib/private/Route/Router.php",“line”:302,“function”:“main”,“class”:“OC\AppFramework\App”,“type”:"::"},{“file”:"/home/myuser/public_html/pwc/lib/base.php",“line”:1006,“function”:“match”,“class”:“OC\Route\Router”,“type”:"->"},{“file”:"/home/myuser/public_html/pwc/index.php",“line”:36,“function”:“handleRequest”,“class”:“OC”,“type”:"::"}],“File”:"/home/myuser/public_html/pwc/lib/private/Log/ErrorHandler.php",“Line”:92,“CustomMessage”:"–"}}

Community Document Server, OnlyOffice, Collabora Online Code server are all installed on the same machine.

What can be wrong? Any help would be appreciated. Thank you.