Unable to update Supplier bank branch - iby_ext_bankacct_pub.update_ext_bank_branch

I am trying to update the Branch Information of existing bank and i am getting below errors.

Error1: Test Branch Name3 This record in table HZ_PARTIES cannot be locked as it has been updated by another user.

Error2: This record in table hz_contact_points cannot be locked as it has been updated by another user.

Below is the sample script i am using to update branch info.

declare

 p_init_msg_list    VARCHAR2(1) := 'F';

 i           number;

 l_msg         VARCHAR2(200);

 x_return_status    VARCHAR2(3000);

 l_msg_data      VARCHAR2(3000);

 x_msg_data      VARCHAR2(3000);

 l_msg_count      NUMBER;

 x_msg_count      NUMBER;