hiya @melichpelegri ,
I'm not sure what to suggest. This is a pretty old version.
From reading the release notes, I might try going to 1.8.1-RC
https://fusionauth.io/docs/v1/tech/archive/release-notes/#version-1-8-1-rc1
"Performing a clean install of 1.8.0-RC.1 may fail in some cases"