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This is the result of the check printing being locked on the House Bank Account. You may have more than one bank account from which you write checks (a House Bank Account), but on this particular one, the check printing has been locked. The solution is to go to Administration>Setup>Banking>House Bank AccountAccounts. From there you'll scroll all the way to the right . The very last column should appear like the screen shot below. 
until you find the "Lock Checks Printing" column. This is typically the last column in the table, but could also be somewhere in the middle.
To fix this issue, simply uncheck the Lock Check Printing box and click "Update" at the bottom of the window. From there, you should you will be able to resume check printing.
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If the "Lock Checks Printing" column does not show up, you may need to go to Form Settings at the top Settings to add that column. If it is not available as a form setting, the then the user account you are logged in as does not have the necessary permissions to see this column, in which case the key user for the company should have the necessary permissions to unlock the check printing. You will need to have someone with higher authorization go in and uncheck the box for you. If no one is seeing the checkbox on your end, contact Orchestra Support for further help.
Check printing becomes can become locked as a result of the following conditions:
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