Website disappears, deactivate s2members help

Hi, my clients website http://howtoloseweightmike.com disappears time to time. If I disable s2member plugin it comes back. Then I re-activate s2member, it works for a while then disappears again. It is strange. Can you help me to maintain the site visible?

The same is happening to the mobile version of the site. The difference is, that when I activate the s2member plugin, the mobile version disappears immediately. If I disable s2member, the mobile version can be seen.
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Update to this:
I have found out that Instabuilder and s2member are conflicting. If I disable one of them the mobile version is showing.
I would like to use both of them. Have you got any idea, what can cause this plugin conflict?

Hello Sandor,

What do you mean with disappears? What error do you get?

Also if you want to use Instabuilder along with s2Member you will need to contact their developer so that he may look into the problem.

– Eduan

Disappearing means:

Your browser doesn’t show anything, just a BLANK PAGE.

Every time it happened, I had to go to the File Manager on the server, and rename the plugin, after it the site appeared again in the browser. Then I renamed back the plugin folder, and the site worked for some days, then the bug happened again.

For the mobile version of the site: as soon, as both of the plugins were activated, the mobile version on my iPhone showed only a blank page, nothing on it. If I disabled one or the other, the mobile version appeared at once in the mobile browser.

I contacted the plugin support team, and they promised me to see after the problem.

I see… If it doesn’t provide any errors then it’s impossible for me to provide any help. :/

Hope they find the source of the problem. :)