EBANG E10.3 SOME ISSUES

[mk008]

Hi anybody.
I have some ebang e10.3 farm that not work properly. when check with ebitminer mini software in work state column found that there are some problem.
1- voltage leak
2- hash lacking

can anybody give me any information about these and also solution.
more over, in algorithm no column there are 4 active algorithm column but in some one them only three or two of them work and other shows 0 . do have any idea about that?

I contact to ebang support skype but they did not answer me.

Thanks so much for your help.