The PHP Extension MB String could not be detected

This error means the version of PHP you are running doesn’t have support for MB String. This extension is used to correctly display non-English characters in PDF documents. To fix this issue, you’ll need to contact your web hosting and tell them you need MB String enabled.

The PHP Extension MB String does not have MB Regex enabled

This error means the version of PHP you are running does have the MB String module installed, but doesn’t have support for the regular expression functions which usually come bundled with this extension. To fix this issue, you’ll need to contact your web hosting and tell them you need MB String’s Regex functions enabled.

The PHP Extension GD Image Library could not be detected

This error means the version of PHP you are running doesn’t have the GD Image Library installed. This is used to correctly display images in the PDF documents. To fix this issue, you’ll need to contact your web hosting and tell them you need the GD Image Library installed with jpeg and png support.

The PHP DOM Extension was not found

This error means the version of PHP you are running doesn’t have the DOM extension installed. This is used to correct certain display issues when generating PDFs. To fix this issue, you’ll need to contact your web hosting and tell them you need the DOM extension installed.

The PHP Extension libxml could not be detected

This error means the version of PHP you are running doesn’t have the LibXML extension installed. This is needed by the DOM extension. To fix this issue, you’ll need to contact your web hosting and tell them you need the LibXML extension installed.

You need 128MB of WP Memory (RAM) but we only found X available

This error means the WordPress memory limit isn’t high enough. Generating PDF documents is hard work and uses a lot of resources, which is why it needs more memory. Read our guide on how you can increase your memory limit to fix the problem.