PARSING ERROR , reply fast pleaes

[NightFlareHub]

Error parsing save: Invalid Serial: "BL1JT1CQzBm/JvEfoyF4Jh2ImHix9GznZ09TpkP3IfuS5w=="; Serial Version: 4; Database Version: 64

what is goin on? how do i fix it even

[NightFlareHub]

even on new character or characters i made before , only it opens on character i dowloaded for some reason.

[NightFlareHub]

some works some dosent , can it be some mods type stuff??