Receiving the following errors when activating

Receiving the following errors when activating the Membership Plugin:

Notice: Undefined index: subscriptions_page in /home/content/79/11555479/html/wp-content/plugins/membership/membershipincludes/classes/membershippublic.php on line 2142

Notice: Undefined index: registrationcompleted_page in /home/content/79/11555479/html/wp-content/plugins/membership/membershipincludes/classes/membershippublic.php on line 2241

Please advise.

Regards,
Jordan