When adding fitness data using the WordPress Fitness Tracker Plugin, you might receive this error message: “You don’t have sufficient privileges to perform this action …”

The fitnesstracker.php file of this WordPress plugin contains two incorrect references to the plugin sub-directory. The plugin directory should be /wp-fitness-tracker/ instead of /fitnesstracker/.

FIX: Use a good text editor like notepad++ to open the php file fitnesstracker.php. First, make a backup of the original fitnesstracker.php file. Edit lines 61 and 84 of original fitnesstracker.php to change these references:

page=fitnesstracker/fitnesstracker.php

should be changed to this:

page=wp-fitness-tracker/fitnesstracker.php

Then, save the file with these changes.  These modifications should eliminate the error message and allow the page of previously input data to properly display.

Give credit to ClaytonJames for this fix.