I don't understand this reject can any one help Code: F1116-004-02 Foreign Tax carry back

Return Rejected 03/22/2022
Code: F1116-004-02
Form: 0(00) Form Copy:
Line #:
Description: 2636(/efile:Return/efile:ReturnData/efile:IRS1116/efile:ForeignTaxCrCarrybackOrOverAmt)
Error Detail:
If Form 1116, 'ForeignTaxCrCarrybackOrOverAmt' has a non-zero value, then a binary attachment with description 'Form1116ScheduleB' must be attached to 'ForeignTaxCrCarrybackOrOverAmt' and 'ForeignIncmSection951AInd' must not be checked.
Error Resolution:
A PDF attachment of Form 1116 Schedule B is required to file this return electronically. To attach the PDF, select from the top of your screen E-File> Attach PDF Files, then select Add Attachment, navigate to the PDF copy of form 1116 Schedule B, select the file and click open. In the Type drop down select "1116" the Form/Schedule and Description will be "Form1116ScheduleB", then select OK to attach the PDF. Make the necessary changes and re-submit this return electronically. However, if the reject continues you may want to file this return via U.S. Mail, print this federal return and mail it to the appropriate IRS Service Center.