(104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server Set up: Plesk Obsidian 18.0.28 Centos 7 Like any error that pops up, the real check is how do you react? Keep and calm and investigate - even if colleagues are stressed out;  Grab a stress ball and work on it hard; or Join and stressed out party and lose perspective. I haven't seen this one before.  A quick search through Google and I discovered a solution on Virtualmin.  However, they write about...

I had the issue where I needed to filter an array list by a specific column.  In my instance, the column is language.  To be able to reduce the query to the language column the code required is levels = selectedCategory?.levels.filter("language = %@", language)Language can be any string, in this instance for me language is a two alpha character such as 'fr', 'en' or 'de'. Further to this you can continue to chain this query through including sort as per levels =...