This depends on what configuration of SAP Concur you are using. The exception message to me sounds like you are on SAP Concur Standard edition.
If you are the site administrator, from the home screen of Concur, go to the upper right-hand corner where it says Administration. Mouse over Administration then select Expense Settings. On the next screen that opens, go to the section labeled Capturing Spend. You will see a link called: Expense Types for Expenses. Select this. This will bring you to the list of Expense Types your company is using. Scroll down the list until you see Hotel. The next column to the right (named Flag Expenses Over) should have an amount listed there. You can either change the amount to a higher amount or delete it if you do not want to have a limit.
Please let me know if this helps.