I have received a long list of warnings and notices when I tried to 'Clear Log' file. The URL showing is "http://www.mysite.com/admin/reports/contact_importer/clear" ;
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•Warning: Missing argument 3 for contact_importer_log_clear_confirm_form() in contact_importer_log_clear_confirm_form() (line 366 of /home/diamonds/public_html/d_c/sites/all/modules/contact_importer/contact_importer.admin.inc).
•Warning: Missing argument 4 for contact_importer_log_clear_confirm_form() in contact_importer_log_clear_confirm_form() (line 366 of /home/diamonds/public_html/d_c/sites/all/modules/contact_importer/contact_importer.admin.inc).
•Notice: Undefined variable: engine_name in contact_importer_log_clear_confirm_form() (line 367 of /home/diamonds/public_html/d_c/sites/all/modules/contact_importer/contact_importer.admin.inc).
•Notice: Undefined variable: provider_name in contact_importer_log_clear_confirm_form() (line 368 of /home/diamonds/public_html/d_c/sites/all/modules/contact_importer/contact_importer.admin.inc).
•Notice: Undefined variable: engine_name in contact_importer_log_clear_confirm_form() (line 370 of /home/diamonds/public_html/d_c/sites/all/modules/contact_importer/contact_importer.admin.inc).
•Notice: Undefined variable: provider_name in contact_importer_log_clear_confirm_form() (line 370 of /home/diamonds/public_html/d_c/sites/all/modules/contact_importer/contact_importer.admin.inc).

Are these serious issues and would it affect the overall or specific performance? Can someone handle them and issue clarification. Thanks