Plugin does not create a custom table upon activation

To answear my question: It’s a typo.

    `students_email` VARCHAR 850) NOT NULL, 

should be:

    `students_email` VARCHAR (50) NOT NULL, 

Oh the headache. When the typo is corrected it creates a new table.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)