Storage space is getting critically high

Hello I am using FreePBX 13.0.131 and I have been receiving alerts every hour on this. I went through so old forums from a couple of years ago and after reading them I have upgraded all of my modules. I went through and checked if I had some recording and backups that I could delete and I don’t see anything. Here is the output from CLI

[[email protected] ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 75716712 68616248 3247616 96% /
tmpfs 956732 0 956732 0% /dev/shm
/dev/sda1 289293 26921 247012 10% /boot
[[email protected] ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 73G 66G 3.1G 96% /
tmpfs 935M 0 935M 0% /dev/shm
/dev/sda1 283M 27M 242M 10% /boot

Check the following directories and clear them from any unused files

/var/spool/asterisk/monitor
/var/log/ (and every directory inside there)
/tmp

If you’re curious you can also check the sizes of these directories with the du command. The -h flag is for human readable and the -s is for summary. Omit the -s if you want to see every subdirectory.

du -hs /var/spool/asterisk/monitor
2.2G /var/spool/asterisk/monitor
du -hs /tmp
2.8M /tmp
du -hs /var/log
11G /var/log