Unfortunately nothing changed
“internal Server problem”
What version of php is running and enabled in the webserver. Could you check?
sudo php -v
Could you double check if redis is enabled as a module?
php --ri redis
It should look like:
php --ri redis
redis
Redis Support => enabled
Redis Version => 5.3.4
PHP 8.0.13
That’s it!
sudo apt install php8.0-redis
sudo phpenmod redis
sudo systemctl reload apache2
and could you check again:
php --ri redis
edit: added apache2 restart
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You are live! You just have to fix the R in Trusted domains.
YEAH omg thank you sooo much, now its up again… I had this problem for 2 weeks now haha… and you fixed it in minutes… Thank you very much 
Do you have a solution for this problem too?
Ive tried a lot, but it never disappeared… would be very great
As @bb77 wrote in the second post:
sudo apt install php-redis
strange that this did not install and enable php8.0-redis. It normally should.
But I’m glad that is working again for you.
Okey thats really strange…
sudo apt install php8.0-imagick
I thank you very much! Looks like the php version 8 caused the problems… Though the normal commands for installation didnt work for version 8 or sth like that…
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php-redis is the name of the distribution package and I think the PHP version included in Ubuntu 20.04 is 7.3. If you want to install another version e.g. from a PPA, you have to specify which version you want to install, e.g. php7.4-redis, php8.0-redis etc… Didn’t think of that or that this could be the issue. Anyways, glad that it is working now 
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Hey guys, this article is still helpful in January 2023, after update to 1.50.5
Tanks a lot
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