Storage Alert email every hour

Hello,

PBX Firmware:10.13.66-6
FreePBX 13.0.27
Current Asterisk Version: 13.5.0

I get emails with Storage Alert “Storage space is getting high on the following drives of your system: /dev/sda2 is 75% full” EVERY HOUR!

How can i set it to ONCE or EVERY DAY?

It’s annoying for a purpose - if storage fills up, the box will crash - can you remove the junk, or give it more space?