Empty upload files in tmp folder

Hello,

I’m stuck and I hope this great community can help me.

I have a webshop running woocommmerce, which offers customers the option to upload an image upon checkout. Everything was functioning fine, until i updated wordpress, the theme and all plugins. The shop is functioning fine, however when an image is uploaded, the name of the image is visible in the back-end (attached to the order) as well as in the designated tmp folder. However, when you try to open the image the file is empty.

I have to following errors in my log:

PHP Warning: file_get_contents(/tmp/wcj556gs2): failed to open stream: No such file or directory in /home/vhosting/q/vhost0076349/domains/user/htdocs/www/wp-content/plugins/woocommerce-jetpack/includes/class-wcj-checkout-files-upload.php on line 227

I tried another upload plugin and that resulted in the following errors:

PHP Warning: file_get_contents(/tmp/alggqXhMk): failed to open stream: No such file or directory in /home/vhosting/q/vhost0076349/domains/user/htdocs/www/wp-content/plugins/checkout-files-upload-woocommerce/includes/class-alg-wc-checkout-files-upload.php on line 187

PHP Warning: unlink(/tmp/alggqXhMk): No such file or directory in /home/vhosting/q/vhost0076349/domains/user/htdocs/www/wp-content/plugins/checkout-files-upload-woocommerce/includes/class-alg-wc-checkout-files-upload.php on line 189

Note that i replaced the domain with “user” for privacy.

Hope somebody can help me,

Kind regards,

Floris