Attempting to delete an entry from Program 117 Public Dial Plan Digit Analysis. Getting an error:

CTX Error: (0x206b00) Facility=0, Severity=0, Command=117, Error Code=32, Data=0
The value entered uses characters that are not permitted.

Just wondering if anyone else has seen this.

How are you deleting the entry?

LCR/DR Menu > LCR Guide Page
Click 117
Gives the following options:

117 Public Dial Plan Digit Analysis

With three buttons:

Add - Add New Entry to Public Dial Plan Digit Analysis
Modify - Modify Selected Entry
Delete - Delete Selected Entry

Below the buttons is a table containing the LCR assignments. I highlight one and click Delete and get the message.