Session: Error while trying to free lock for ci_session

This is seriously ridiculous.
No one here reported any solution for my problem.
I did everything as it should be with session_write_close() but just don't work.
Maybe creators will do something in future with this, who knows.

@spjonez
Thanks but that is bad practice
Anyway, what to add in CI Configuration for this? Maybe to add with ELB for some time until I setup up NFS.
Most probably I will go with files and NFS like GlusterFS and pray for AWS to release EFS in Ireland.