nly black screen came up when I try to export a file which I produced using After Effect to Media Encorder

Problem: From 3 days ago, what have been properly worked before,

there has been only black screen came up when I try to export a file which I produced using 'After Effect'  to 'Media Encorder'.

Weirdly, it works well when exporting the AE file produced before 3 days ago to Media Encorder and also works well when I delete all previous files while the AE file opened and operate newly.

But, exporting files produced after 3 days ago doesn't work normally.

I tried re-installing CC, reseting the pathes of disk cache and media cache, adding solid layer but the problem has not been solved at all.

But mov file format normally plays when exporting it to Render Queue.

In my guess, there was something wrong with the previous cache path but the problem is I do not remember where I setup the cache path.

Please help me to solve the problem.