I’m not sure about your specific situation, but usually stringing can be fixed by adding filament retraction and drying the filament. You can enable retraction in your slicer. To dry your filament, heat your bed to a temperature comfortably lower than your filament’s glassing temperature, put the spool on the bed and cover it with a box, then wait a few hours. (The filament is eepy). Be careful not to set the temperature too high or you will melt the filament and it will fuse together right on the spool, ruining the entire thing.