I have a few problems:
1. When you turn on debug mode I get errors. As they try to delete? http://prntscr.com/6972jj
2. In the console errors occur from google fonts. The font is not used anywhere how to disable it? http://prntscr.com/6972to
3. From time to time after switching to either sub blank page appears. What do you mean improved?
1. Those are just notices, not errors. You shouldn’t worry about it and disable debug mode.
2. Did you add any fonts in Punch Fonts menu in wp-admin panel?
3. Sorry, but your question is unclear. Please clarify it with more details and provide us with wp-admin panel credentials.
2. Yes, at the moment I turned off and it’s ok 🙂
3. When any page refresh, instead of the content appears white page. Blank page .. The same thing happens in the back page or the front page.
As you can see from the last screenshot there is an error – Internal Server Error.
It means the problem is on a server where your site is located.
Perhaps there were some connection problems on a server.