Index: sql/data_load.sql
===================================================================
--- sql/data_load.sql	(revision e7bafc08ad74099b6daf91b8414b90e3c4968111)
+++ sql/data_load.sql	(revision 002cf5f9fe36565e030e882d63222c760d638995)
@@ -115,9 +115,9 @@
 (3, 1, 'tok_old789_stefan', '2026-01-01 00:00:00', FALSE);
 
-INSERT INTO payment (id, enrollment_id, amount) VALUES
-(1, 1, 200),
-(2, 2, 200),
-(3, 3, 400),
-(4, 4, 200);
+INSERT INTO payment (id, user_id, enrollment_id, amount) VALUES
+(1, 1, 1, 200),
+(2, 1, 2, 200),
+(3, 2, 3, 400),
+(4, 3, 4, 200);
 
 INSERT INTO major_subjects (major_id, subject_id, mandatory_semester) VALUES