sentry mba proxy getting banned too quickly

I'm new to cracking on sentry mba, and I have noticed that everytime my proxies get banned sentry mba stops cracking and the proxies do not get unban after this, I would like to know how do I get them unbaned or if there is any other way of doing this, please I hope that anyone could help me.

You mean they are getting banned on the sentry mba?

If so, you can unban, but it wouldn't work anymore with the same config...