Diagnosis
In the chart of accounts to be posted to, no accounts are defined for the tax code you used.
Procedure
Contact your system administrator.
Define the accounts to which a tax posting is to be made with the tax code entered in Customizing for taxes on sales/purchases.
To do this, choose Maintain entries (F5).
SOLUTION:
STEP 1 : Go to T Code FTXP > Provide Tax Code and Press Enter.

STEP 2 : Click on Tax Accounts > Provide your Chart of Account

STEP 3 : Provide the Tax G/L Account and SAVE.

Thanks,
Adharsh KS