internal server errors

[cKleinhuis]

i talked to the provider

this is the cause for internal errors:
  1&1 Dual Advanced       - max. 80 MB RAM (max. Prozesszeit: 40 Sekunden; max. Prozessanzahl: 15)

this means i have max 80gig of memory, 40 seconds max processing time, and a max number of running processes of 15 .... which is quite low, but not every user is clicking as much, so with 15 threads many users can served

but i will change the 500 error page that is displayer, to inform the user that server is at its limits ....