NEED HELP ADDON

Hi ! I need help ! I dont know whats going on with my addons, when i reach a number of addon like 45, the server running the addon but all the basic tools are not here ! Look this screenshot ! http://www.noelshack.com/2014-27-1404153027-sans-titre.png !
And when i join the server the consol say this


ERROR: Trying to derive entity base_wire_entity from non existant entity base_gmodentity!

with a lot, a LOT of thing…

HELP !

You have too many addons. Remove some of them.

what is the limit of addons ?

It depends how many lua files they have.