[imp] HELP !!

[Pavel Sorejs]

I have problem with IMP
I getting these errors:

Warning: Constant no_action already defined in ./lib/imp.lib on line 23

Warning: Constant send_message already defined in ./lib/imp.lib on line 42

Warning: Constant mailto already defined in ./lib/imp.lib on line 52

Warning: Use of undefined constant LOG_LOCAL4 - assumed 'LOG_LOCAL4' in
./lib/imp.lib on line 631

Fatal error: Cannot instantiate non-existent class: hordesession in page.inc
on line 18