Fedx Validation error

[Hari Anha Foods]

when we are updating Fedx details Iam geeting error 

as An error occured while trying to validate your account (click here to see full report) 

Below  is the report. Please help us in this regards.

 

[03/06/2021 12:14:00] An error occured while trying to validate your account

// ------------------------ Error message:
SOAP-ERROR: Encoding: Element 'Major' has fixed value '13' (value '20' is not allowed)

[03/06/2021 12:22:12] An error occured while trying to validate your account

// ------------------------ Error message:
SOAP-ERROR: Encoding: Element 'Major' has fixed value '13' (value '20' is not allowed)
'

https://anhafoods.com/modules/fedex/logs/fedex_error_report.html