Took me 10 hours to install gapps on this firmware but in the end it worked 
Here is the official firmware if you would like to downgrade to install gapps (gms), I tried to post in firmware but I couldn't due to low points (new account, but lurking since Galaxy S5)
MEGA:
GoogleDrive:
Here is the official firmware if you would like to downgrade to install gapps (gms), I tried to post in firmware but I couldn't due to low points (new account, but lurking since Galaxy S5)
MEGA:
HTML:
https://mega.nz/file/c3AgkL7Y#tUZHmn83CdYNJX7aWSoxn3e-kiNjTUQcWOfSMavmd2I
HTML:
https://drive.google.com/file/d/1R3XwRLQzBNlLYiaU5l64mpds4Yzg2UFg/