Allgemeiner Fehler: 1215 kann keine Fremdschlüsselbeschränkungen hinzufügen, Laravel
Laravel 5.8 Added bigIncrements As Defaults
So there is mismatch in foreign key field types. You see bigIncrements(id) in
User table and unsigned Integer(user_id) in questions table.
How to fix:
1. Either change original migration from bigIncrements() to just
increments()
2. Or in your foreign key column do unsignedBigInteger() instead of
unsignedInteger().
Lokesh003