* 3) ”general exception“/League of Legends.exe not found trying to play an older replay
This can happens when Riot releases a normal patch or a ”stealth“ patch that changes things, but doesn't up the patch version number.
For stealth patches, report it and Haxalot should have it fixed very soon after reading the report.
(any old replays for which the cached data was previously downloaded by playing another replay from the same patch version shouldn't run into this problem, so therefore this tip: