Two reports give errors, YouTrack6 Follow

I have a YouTrack with new reports, some of them doesn't work:
1) "issues per project" - doesn't generate any content at all, just loading animation and "HTTP error" message (screenshot1);
2) "custom distribution" - generates without any usefull lines or views, and if you want to change any parameter, this diagramm asks "Give me axle!" (screenshot2)