addToCustomerClub Problem

[soroosh-e]

Hi
I got this error when I used addToCustomerClub method :
FatalThrowableError
Call to a member function getBody() on array

in Smsir.php line 20
at Smsir::DBlog(array('IsSuccessful' => false, 'Message' => 'Oops!Sorry!Something went wrong. Please contact tech@sms.ir or 098212853 so we can try to fix it.'), 'افزودن *** به مخاطبین باشگاه ', '****')in Smsir.php line 128

but other methods are work fine.
I'm using laravel 5.7 with php 7.2