Hi Brett.
We have Simple Staff list plugged in our tennis clubs web-site.
While updating WP version to 4.7.3, the plugin functionality disappeared. Noted afterwards that highest WP-version compatibility is 4.4.8.
Two choices then – roll back WP-version (unwanted because of security) or shift the plugin.
To avoid this in the future, would you recommend for us to switch to another plugin?
