If a detection is triggered and it's not disabled by the server, a player will get kicked and be shown the AC code corresponding to that detection. But the best solution to your problem is appeal the ban/contact server owner. VPN won't work because 99% sure it's a serial ban, and once you start asking how to evade an serial ban you got a problem on these forums (that's not allowed). You'll need to appeal the ban with that server, we're not going to help you ban evade.
If you try to use a typical MTA cheat under the belief using. Hacks & cheats designed for MTA may trigger a Global ban.
They are bound to the software and hardware configuration. Serials are used by MTA and server administrators to reliably identify a PC that a player is using.
MTA:SA is an add-on for GTA: San Andreas that add. Selection of software according to 'Mta sa serial ban bypass' topic.