Fatal error: Uncaught DivisionByZeroError: Modulo by zero in /users_2025_ade/ma12892/public_html/ade/HOMEWORK/ergastirio5/as5c.php:13 Stack trace: #0 /users_2025_ade/ma12892/public_html/ade/HOMEWORK/ergastirio5/as5c.php(13): gmp_powm(NULL, Object(GMP), NULL) #1 {main} thrown in /users_2025_ade/ma12892/public_html/ade/HOMEWORK/ergastirio5/as5c.php on line 13