MashupProvider folder size keeps increasing

Hi experts,
 

We have a question regarding a specific situation we are having in our PowerBI server.

In the server in which PowerBI is installed, we noticed that the used disk space is increasing quickly
After a research, we detected that the folder with the problem is inside the PowerBI instalation itself: 

Server/.../Microsoft/MashupProvider/Cache

Starting two weeks ago, we are generating many GBs of data in that folders, but we cannot identify a reason.

My questions are:
1- Is there any way to program a deletion of caché and temp data in the PBI Report Server instalation? 
We know that there is a setting, but to be use with the client instalation. But what we need is to erase the data in the Server, not in our client installations.

2- Is there any way to identify if an specific object in the whole server (for instance a Dashboard) is generating tons of caché/temp data?

If you need any other information, please let me know!

Many thanks in advance!