sorry, this was a new issue and I realized after I posted.
I thought maybe it was an issue with the wordpress update 4.2.1
I will try your suggestion with disabling plugins.
Thank you and I appreciate the quick response!
I disabled all plugins and tried to activate email users.
this time got this message…
Plugin could not be activated because it triggered a fatal error.
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32 bytes) in /home/thegym/public_html/CombativeSports/wp-includes/meta.php on line 818
I am not a computer guy so this is greek to me