Thread:Project:Support desk/Changed hosts, now getting "Fatal exception of type MWException"/reply (5)

Okay, failing to find anything I understood in the knowledge base (I am in no way a PHP or programming person), I commented out Will this cause a disaster...because the wiki is working again?
 * 1) Shared memory settings
 * 2) $wgMainCacheType    = CACHE_ACCEL;
 * 3) $wgMemCachedServers = array;