I’m on PS4 and the game does have it’s share of glitches, your experience sounds like more than that tho.
On PS4, you can upload your save to the cloud… or maybe the game saves to the servers automatically since it’s so online dependent. Perhaps verify that your save is safe and then I’d suggest deleting the game and re-installing as a troubleshooting step. Maybe even ask the guys at the 505 games support section of the forums about the process of re-installing. It would suck to lose your progress so be cautious.
http://community.gemsofwar.com/t/support-contact-on-xbox-one-and-playstation-4/1340