Openlitespeed 503 - lsphp states: no space left on device but there is enough free space available on the server

I set up a server following the tutorial on: https://docs.litespeedtech.com/cloud/images/wordpress

I regularly get a 503 error; when I check the logs I see the following:

ERROR   [lsphp]: Failed to listen socket [/tmp/lshttpd/lsphp.sock]: No space left on device
WARN    [uds://tmp/lshttpd/lsphp.sock] Can not start this external application.

However, there is plenty of space left when I check:

Filesystem      Size  Used Avail Use% Mounted on
udev            2.0G     0  2.0G   0% /dev
tmpfs           395M  628K  394M   1% /run
/dev/vda1        78G  6.7G   71G   9% /
tmpfs           2.0G  1.2M  2.0G   1% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           2.0G     0  2.0G   0% /sys/fs/cgroup
/dev/vda15      105M  3.6M  101M   4% /boot/efi
/dev/loop0      1.5G   25M  1.3G   2% /tmp
tmpfs           395M     0  395M   0% /run/user/0

Also, the image should have set the following limits:

Max SSL Connections	5000	10000
lsphp Max Connections	35	100
PHP_LSAPI_CHILDREN	35	100

However my limit are this:

max ssl connections 1000 (not even the 5000 as it should been standard?)
lsphp Max Connections 35
PHP_LSAPI_CHILDREN=35

How come the image didn’t set those and can I just change them via the webadmin console?

Thanks.

Regards,