Answer Happy

in the class diagram attached, what is the correction?
knowing that C1 (error code) means:
✓Class diagram: CEO CEO 10 t Name String Salary t Manager int Name Stang Salary in manage at int add Manager -delete Manager update Manager) view Manager int) supervisor 10 t Name String Salary t Superme ant add Supervsar -delete Supervision) update Supervisor) Supervisor intu Staff Staf ID at Nama String works at String works on int Salary int add_Start update Staff -delete Su niew Statt info 1. Manager Supervisor FK F.K 1. 1 Naree String Cate Comapny 1 Company delete Company) update Company view Company infa) branch Number inf address String add Branch -delete Branch update Branch) view Branch infe +operation) Staff Works on Mobile Antenna Stuff Dint Mobile Antanna Namber and 1 1...* Branch Department Narber, int Name String add Department -delate Department) 1 updale Department) +ew Department no 1+ F.K Department C12 9 Mobile Antenna tranch branch Number int Mobile Antara Number Mobile Antenna Start Wokning for branch at Data Moble Anten Mobile Antenna Number in coordinates F-U cost int Mobile Artenna Start service at Date add Mobile Arten assgain Mobile Antena update Mobile Act delete Mobile Artura view Mobile Artenna info 3.95 4
C1 Solve Relationships between classes by the arrangement of Primary and Foreign Keys inside classes.