You are allowed to suspend your YMO membership 1x during your billing cycle - if you have already suspended it once, then you can't suspend it again.
You can suspend your YMO membership from your Account Dashboard. If the suspend button is not visible on your account, typically this means you have already suspended your membership 1x during your billing cycle - you can only suspend your membership 1x per billing cycle, which is why you can’t see the suspend button.
Please contact our Customer Support Team so they can manually suspend your YMO membership.