@MIEL hello, please run MTADiag (https://forum.multitheftauto.com/topic/32071-mtadiag-diagnostic-tool-for-mtasa-support-section-information/). Press 'n' when asked and post any Pastebin URL MTADiag gives you.
It seems like it's a CLEO problem, so I will give you one video which it must fix it. It's a modding problem, you instaled something which is not compatible using any server or maybe CIT. If nothing works, better clean your GTA SA and re-install to be clean, but before try to repair using what I said.
Show content
https://www.youtube.com/watch?v=cIzfrqSGdhk&t=4s