Cannot upload video from remote server....

Dear Admin or anyone,
I got problem to upload videos from remote server and when I tried, this word appeared :
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Fatal error: Call to undefined function: strpbrk() in /home/fxgroup/public_html/vshare/include/classes/class.upload_remote.php on line 16

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Does admin or anyone knows how to solve it this problem ? Please help.
Thank you.

viewtopic.php?f=6&t=2722

Here you can see the zip file upload it and try after that