Why can't i create or find a variable with this structure

The Problem: I have my own structure (called playerinfo) and another structure (Sponsorinfo named) and the sponsorinfo is in the playerinfo. Now, i changed some stuff in the sponsorinfo and now i cant access the player info variable in any blueprint and i can’t create a variable with the playerinfo structure. so i dont find the existing variable and i cant call it and i cant even create a variable!!!

OK, i just fixed it after recompiling every single blueprint and setting up the structure again but i create other variables of the struct and i cant open my project now bc these made me errors.