WP All Import issue

Hello!

We have an issue with loading listings using WP All Import plugin from xml. file. Previously, everything worked fine and loaded. The screenshot of the error is in attachment. Today was WP All Import plugin update. Maybe this is the reason?
The details of the technical error that WordPress sent are as follows:

An error of type E_ERROR occurred on line 375 of the file /home/tsinnru/krdmama.ru/wp-content/plugins/geodir-wp-all-import/includes/class-geodir-wp-all-import-addon.php. Сообщение об ошибке: Uncaught Error: Call to undefined function is_intval() in /home/tsinnru/krdmama.ru/wp-content/plugins/geodir-wp-all-import/includes/class-geodir-wp-all-import-addon.php:375
Stack trace:
#0 /home/tsinnru/krdmama.ru/wp-content/plugins/geodir-wp-all-import/includes/class-geodir-wp-all-import-addon.php(304): geodir_wpai_maybe_import_location(Array, ‘gd_place’, 2464)
#1 /home/tsinnru/krdmama.ru/wp-content/plugins/geodir-wp-all-import/libraries/rapid-addon.php(398): geodir_wpai_import_function(2464, Array, Object(PMXI_Import_Record), Array, Object(Closure))
#2 /home/tsinnru/krdmama.ru/wp-content/plugins/wp-all-import/models/import/record.php(1766): RapidAddon->import(Array, Array)
#3 /home/tsinnru/krdmama.ru/wp-content/plugins/wp-all-import/controllers/admin/import.php(2577): PMXI_Import_Record->process(‘

Can you help, please