Error after Letsencrypt install, if disable redirect to other site

Hello friends… Saturday a instaled L.E. in my site (various sites in same EE server) but after instalation L.E. I can’t add new pages, not edit template e and other problems… if disable the Lets encrypt in (try solve the problems) my site redirect for other site installed in the same server ( with using LE.

How to solve this problem?

Very Tks