This is because your cms.root doesn't match properly with civicrm.root variable and you might be using variables in Resource url for 'CiviCRM Resource URL'

For such cases you add below two line at the end of the file

    $civicrm_setting['URL Preferences']['userFrameworkResourceURL'] = CIVICRM_UF_BASEURL . '/wp-content/plugins/civicrm/civicrm';                                                                                                     
    $civicrm_paths['civicrm.root']['url'] = CIVICRM_UF_BASEURL . '/wp-content/plugins/civicrm/civicrm';

Note: Make sure your CIVICRM_UF_BASEURL doesn't have '/' in the end.

Thanks

Pradeep