How to resolve this Fatal Error after cache emptying?
I am experiencing a problem with one of my online sites developed with Symfony. After making an update on the online site, I emptied the cache as usual so that the update could be taken into account. Following this, I got a fatal error message that I don’t understand. Just in case, I deleted the change and emptied the cache again and I still get the same error. Same when I purge the site cache on the host. I should point out that I have never touched files such as those in the Vendor directory, etc.