check your team level, and compare it with people on rank. if you cannot kill a boss in a stage with all 3 dishes being used, you should not proceed forward. your team has to be able to kill a boss with 3 dishes without MOD enabled. if you move beyond your team's potential, they immediately catch you and inflict a ban. the same is true for infinite tower as well. you must play wise to develop your team while using the MOD. if you keep rushing, you will face a ban.
I have been banned twice in the past couple of months, but now own a team of 1100 level, with ~8k arena score, at stage 7400 and infinite tower at level 650. just play wise and do not rush. I never used multiplier settings beyond 2, only using move speed at level 6. never use defense amplifiers or god mode, or freeze/dump enemy modes. just enable always crit hit and marksman mode and you will probably be safe.