Login screen when selecting link from event

Hi,

When I click on the link from a listed event to view the event detail, I get either a blank screen or a login page.

Here is the detail from Support info:

PHP Version : 5.3.28

MySQL Version : 5.5.33

Fix jQuery? : Yes

Load JEvents Bootstrap CSS? : Yes

Load JEvents Bootstrap JS? : Yes

Max Input Vars ? : 1000

Club code set? : No  

Joomla : 3.4.3

component_com_jevents : 3.2.19

module_mod_jevents_cal : 3.2.19

module_mod_jevents_custom : 3.2.19

module_mod_jevents_filter : 3.2.19

module_mod_jevents_latest : 3.2.19

module_mod_jevents_legend : 3.2.19

module_mod_jevents_switchview : 3.2.19

plugin_content_jevents : 3.2.19

plugin_finder_jevents : 3.2.19

plugin_search_eventsearch : 3.2.19

And the most recent logs from the server:
airmyn.org.uk [Thu Aug 27 17:06:48 2015] [error] [client 92.18.224.133:39698] AH01215: PHP Fatal error: Allowed memory size of 25165824 bytes exhausted (tried to allocate 122880 bytes) in /home/sites/http://unlock-a-phone.com/public_html/airmyn.org.uk/components/com_users/router.php on line 194
airmyn.org.uk [Thu Aug 27 17:16:43 2015] [error] [client 92.18.224.133:57799] AH01215: PHP Fatal error: Allowed memory size of 25165824 bytes exhausted (tried to allocate 122880 bytes) in /home/sites/http://unlock-a-phone.com/public_html/airmyn.org.uk/components/com_users/router.php on line 194
unlock-a-phone.com [Wed Aug 26 21:20:16 2015] [error] [client 52.28.229.189:58848] script not found or unable to stat: /home/sites/http://unlock-a-phone.com/public_html/admin.php

Hope you are able to assist as I would like to subscribe but need to get it all working so I can present this at the next Council meeting.

Thanks