Error 500 Internal Server Error

GET https://admin.webuni.com/en/admin/series/mark-complete?entityId=3

IP
216.73.216.187
Profiled on
Token
966edb
Forwarded to ErrorController (2361db)

EasyAdmin (5.0.0)

Key Value
CRUD Action 
"markComplete"
CRUD Controller FQCN 
"App\Controller\Admin\SeriesCrudController"
Entity ID 
"3"
Sort 
null

Additional Resources