ESXi Console: Unable to connect to the MKS: A general system error occurred: Internal error

When trying to connect to the console of any virtual on the host:
Unable to connect to the MKS: A general system error occurred: Internal error
Had to sift through quite a few solutions that didn’t help to finally find this one that did:

log in with ssh:
# vdf -h
-----
Ramdisk Size Used Available Use% Mounted on
root 32M 32M 0B 100% --
etc 28M 224K 27M 0% --
tmp 192M 37M 154M 19% --
hostdstats 413M 3M 409M 0% --

# cd /
# ls -la
.... look in the results - I see 1 very large file, MegaSAS.log
# rm MegaSAS.log
# vdf -h
-----
Ramdisk Size Used Available Use% Mounted on
root 32M 748K 31M 2% --
etc 28M 228K 27M 0% --
tmp 192M 3M 188M 1% --
hostdstats 413M 4M 408M 1% --


Then I also had to undo the unchecking of the SSL box that some sites advised, without it checked, I was getting an SSL error!