Not sure if this is the area to post this but when I go into the admin - Shipping modules of one of my sites I have done i am getting the following errors:

Warning: main(/kunden/homepages/7/d190143254/htdocs/baskets/store/includes/languages/english/modules/shipping/paypal_curl.php) [function.main]: failed to open stream: No such file or directory in /homepages/7/d190143254/htdocs/baskets/store/admin/modules.php on line 174

Warning: main() [function.include]: Failed opening '/kunden/homepages/7/d190143254/htdocs/baskets/store/includes/languages/english/modules/shipping/paypal_curl.php' for inclusion (include_path='.:/usr/lib/php') in /homepages/7/d190143254/htdocs/baskets/store/admin/modules.php on line 174

Fatal error: Call to undefined method: paypal_curl->check() in /homepages/7/d190143254/htdocs/baskets/store/admin/modules.php on line 179


How do I fix these? Can I just replace these files with the original module files ? I do not believe I've done any customizations to these ?