Error 500 after page 10

[evvo]

I'm getting error 500 after page 10 - for example:

http://crystalshards.xyz/?&sort=updated&page=11
http://crystalshards.xyz/?&sort=updated&page=12

Returns:

missing json attribute: total_count at 0:0 (JSON::ParseException)
0x48cc0e: ??? at ??
0x4d08e5: ??? at ??
0x4d0169: ??? at ??
0x4ca9ad: ??? at ??
0x492863: ??? at ??
0x508d98: ??? at ??
0x4fc53e: ??? at ??
0x504d9e: ??? at ??
0x502d18: ??? at ??
0x508ba5: ??? at ??
0x4ed5e4: ??? at ??
0x416cf8: ??? at ??
0x0: ??? at ??

This works (shows 1st page):
http://crystalshards.xyz/?&sort=updated&page=11?nocache=true