Need plugin help

Hello everyone, thank you very much for reading this!!
I host a minecraft server and some of the plugins I liked to use are giving me some bugs now, I think it is just me that does something wrong haha.

I am running this plugins on my server
[list]
[quote][*]Essentials[/*]
[*]Essentials spawn[/*]
[*]Safelogin[/*]
[*]Worldedit[/*]
[*]Worldguard[/*]
[*]Mobarena[/*]
[*]Towny[/*]
[*]EcoCreature[/*]
[*]SurvivalGames[/*]
[*]Vault[/*]
[*]PermissionsEx (pex)[/*]
[*]MultiverseCore[/*][/list]
[/quote]

And I need help with those, I thought it was helpfull to tell all plugins I have..

[list]
[*]Towny[/*]
[*]Mobarena[/*]
[*]Safelogin[/*][/list]

I hope someone can help me. Send me a private message or contact me on skype!
Svenboy75