TCPDF ERROR: [Image]

Hi, great plugin. Thank you for your job! Unfortunately I’ve a little problem.

Inserting in a post (both new or existing yet) the code: [wpdm_package id=' 12345' template ='link-template-default-wdc']
I receive the following error when I trie to publish the post.
”
TCPDF ERROR: [Image] Unable to get the size of the image: http://www.itinerari-mtb.it/wp-content/plugins/download-manager/assets/file-type-icons/download_drive.png
”
Saving the post as draft I do not receive the error. Any case, trying to go back with browser tab, post is correctly saved with the required content and the view is ok.
How can I solve the problem ? I’m running ver. 2.9.86 with wordpress 4.9.9.
Many thanks for help, regards
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Update 26/01/19. I’m running plugin for pdf post creation. I realize that problem refers to page where pdf creation is on. I’ve not received this error before and pdf plugin was not updated recently. I updated yesterday WP Download manager to the latest version.
Where is the problem ? something is changed with latest version ??