Unable to add GL Account

Zendesk Ticket: https://ungerboeck.zendesk.com/agent/tickets/339484
Account: Boise Center
Region: Americas
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General
Business impact if not resolved: Unable to add GL as we are getting ready to import our budget would be an issue, but thankfully I was able to copy an existing GL and make the modifications necessary.
Short Summary of issue (issue description): Cannot Add GL Account
Macro Vertical: Convention Centers

Debug Environment:
Customer DB Location: Hosted
Database: BoiseCentre_Prod_0950872899_USI
Server: Debug-US,1433
Version: 24.42024120601
V30 Link: https://supportwebus.ungerboeck.com/BoiseCentre_Prod/app85.cshtml?ReturnUrl=%2fBoiseCentre_Prod
User Login: usiadmin/ITRocks2014

Recreation Steps:
 

1. Login to V30> Main Menu> GL Accounts
2. Add a GL account
3. On the add GL account screen fill it in how the screenshot shows that I am attaching.
4. The error occurs

Observed vs. Expected Results: Observed result is the customer cannot add a GL account but the expected result is to be able to add the GL account.
What does the client want to accomplish: To be able to add a GL account

QUESTION: It looks like this error is meant to be there, I am guessing it has to do with the characters in the field "GL Mask Code" but I don't believe they have ever had this issue so why does it happen now?  Also if that is the reason what is the fix for it?

Ryan Ungerboeck 

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