[split] Need to clear log files

help me, i need to delete logs on my sentora
im using putty to access my vps, pls what are the commands

at the moment i am facing this issue on my vps

Critical Error: [0100] - Unable to connect or authenticate to the Sentora database (sentora_core).

before i just restart and all works good again, but now after restart still my database cant connect please help me what to do.