Hi,

I've found a big problem : when i ban player with /ban or /tempban, they are not kicked, and they could join the server

For a player, i had tempban him. He joined the server. So i ban him. He wasn't kick. I stop the server, and i can't use /bminfo (2 entries for this player in database mysql). I removed one, and i can use /bminfo. I bantemp again. For now, i don't know if he can join.

I use Spigot 1.8.8, and BanManager 5.7.0.

It is a big problem !!

Using the same version and don't have any issues like that.
Check your console output for further information whats wrong.

NB: Banip works perfectly
NB²: I have a lots of double entries for the same playername...

I havn't any error... I downgrade into 5.6.1-b182

Double entries in your database? If you always had those you can run a SQL query to remove doubles.

By the sounds of it, you are running in offline mode? BanManager doesn't fully support it.

Yes, i running in offline mode... Anybody find it intolerable, but i am in favor of the discovery : myself, at the begining, when i started minecraft, i used a crack version.

Mhhh... I thought yes because there is an option "offline mode"... is there any solution to fix the problem? (in 5.6 i don't remember saw a bug like this)

Bukkit/Spigot/Craftbukkit takes takes player names as case sensitive in offline mode, where as in online it does not. I.e. coNFUSER is the same as confuser in online mode, but they are registered as different players in offline mode, as they generate different UUIDs.

Nothing was changed from 5.6 to 5.7 that affects the way bans are handled.

Offline mode support was added as a community contribution, and I have no plans to officially support it. If anyone wishes to fix this issue, feel free to make a PR, or raise a bug on Spigot.