Thanks for your report. This message is generated by the Admin Columns/Admin Columns Pro plugin. I cannot find any reference to the set_list_table_class function in the MLA code.
I am currently working with the Admin Columns developers to add MLA support for their new “export” functions. If you can tell me which version of Admin Columns and/or Admin Columns Pro you are using (and which MLA version) I will investigate further and see if I can help resolve this issue. Thanks for any additional information you can provide and for your interest in the MLA plugin.
media-library-assistant/includes/class-mla-admin-columns-support.php
public function __construct()
line 60
Thanks for the additional information! As I wrote, I am re-working this part of the MLA code and had already removed the offending line (60) in my Development Version. As you reported, it still exists in the current released version MLA 2.70.
The next MLA version will correct this issue. In the interim you are welcome to try the MLA Development Version. Note, however, that the Development Version supports ACP “export”, which may not be entirely stable. To get the Development Version, follow the instructions in this earlier topic:
504 Time-Out issue
Skip down to the “To get…” instructions. You can ignore the example plugin instructions.
If you do try the Development Version, let me know how it works for you. If you need a patch for the current MLA production version, let me know. I will leave this topic unresolved until the fix goes out in the next MLA version. Thanks again for your report and for your interest in the plugin.
I have uploaded a new MLA Development Version dated 20180221 that includes the final version of my new code for Admin Columns Pro. It will resolve the PHP Notice issue you reported and adds “Export” support.
I welcome any feedback you have on this new feature. Thanks!
I have released MLA version 2.72, which resolved the PHP Notice issue you reported.
I am marking this topic resolved, but please update it if you have any problems with the new version.
