pretty disappointed & upset

well, i’m pretty upset. i’ve used wordpress for a while & never had a single problem. now… i’m screwed.
my wordpress was fine yesterday & this morning. i had made posts, edited templates, and everything was well & perfect. ppl had commented, i had reloaded the site a million times, etc.
then, i go to it a while ago, and there was a fatal error. it was mentioning my SQL syntax and telling me to check for lines, etc. and seemed to specifically point to files in wp-includes.
i’m lost… i didn’t do anything differently & i’m wondering why this happened all the sudden.
as for the admin panel – it was shot to hell as well. there were no links – in place were the words, “ARRAY,” repeatedly.
PLEASE HELP 🙁 I don’t wanna lose my faith in WP.