Unable to upload most photo files

[jlfloyd720@gmail.com]

I am unable to load almost any file to my gallery.  The few exceptions are small, simple jpg files, but I have not been able to identify what separates the few I can upload from the many which I cannot upload.
The error message returned by Coppermine for unsuccessful attempts is "implode(): Argument #2 ($array) must be of type ?array, string given"
The link to my gallery is http://www.slithergadee.net/coppergallery/.
Test user account data:
Username:  tester
Password:   tester
Sample files are attached.  The first is one that can be uploaded, the second is one that can't.

[ron4mac]

Replace the PHP file include/iptc.inc.php with the contents of the attached zip file.

[jlfloyd720@gmail.com]

OK, that seems to have fixed the problem.  Thank you much.