RZ/N2L - How to handle an hardware fault in IAR

What should I do when encountering a hardfault error during an abnormal interrupt in an IAR environment?

I heard that there are the following assembly code methods:

Add the following statement to return the error mechanism to the previous line, Perform on-site error recovery:

BL R14

Is the above method okay? How can I implement the above assembly code?

Thank you!