Dude what the hell is going on here.  First I upgrade to 10.4 then when I try to activate it I get tons of PHP errors. 

So I said screw it I'll wait till the patch comes out and maybe then I'll get it working right.

My wait paid off and the patch came out which I installed.

Now cForms is brining the whole site down, complete crash

I had to completely remove cForms in order to get the site back up running.

What goes on here, eh

My site does not load either. I have to disable the cforms plug-in , in order for the site to come up. It's something to do with php config, because this just started after our admins updated php and hardened the server. I dont know how to run cforms with this kind of config, unfortunalty I have to disable cforms until this happens to enough people where something can be done to correct this.

I have same problem now with cforms. Has been working fine but now hangs the site when its activated. No other plugins installed/updated to have caused the problems. Repaired the database etc but same issue.

Activate it – site slows to a crawl (1-2 mins to load a page)

Deactivate it – site returns to normal.

Andy said:

Ok, solution for me was to change the permissions for the cforms directory to 777 – reactivate the plugin and then restore the permissions. The update wanted to create a directory but was unable to.

What update [process]?

cforms doesn't create any direcories. but it may need to write to a file that's either in cforms root or js/ or if you use attachment in the designated upload folder.

Pity the script wasn't written to provide an error message instead of locking up the site!

What was the issue? What folder/filed caused th trouble, hard to provide a solution for an unkonwn issue.