mscorlib.dll Exception error occur when try to login

Question

Hello Please can anyone help me with this error below I am new to Hashing

 

exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll An exception oftype 'System.Threading.ThreadAbortException' occurred in mscorlib.dll but was not handled in user code

 

This occur when I try to login with a user I registered previously. The Code run find with no error. The Hashing worked when I register  the user

 

Please find the code attached

 

Eric