APP-FND-01238: Cannot set value for field AR_SYSTEM_PARAMETERS.LAST_UPDATE_DATE.

Hi

AR set responsibility> system>System Option

Here while editing the GL PU code for Realised Gain and loss account. But not able to change any fileds in the form. Its like the form has gone into Read only mode.

Following error is been face while editing the fields:- find the attachment below.

These errors are thrown everytime we try to change it. We also tried clear cache, logging again after 1/2 hour and logging into system unsing  someone else's credentials but the error is persistent.