Jim M

ACP -> Files -> Image Settings. Disabling it fully on your server would be something you want to review with your hosting provider.

Unfortunately, it is just stating that the group they were in has been deleted. You can view this yourself on the member's profile in the ACP. 
It is also worth mentioning that your "Members" group is a protected group in Subscriptions. So that will not change. It looks like this user has "Members" as their primary group so that would also not change. You would need to remove "Members" from being a protected member group in the Subscription settings

This would require customization if you would like to do this at present. 
You can of course, provide your suggestion in our official Feature Suggestion forum for further evaluation.

Support is now started through the community here. The "Help & Support" forum here is managed by our staff and this is the only official support forum which we have. We no longer have priority support but everything else functions the same, our staff still has access to the Client Area to securely access your access details to your community, we can escalate items to tickets with our developers (if needed), etc... 
The reason for this change is that we receive a super high percentage of requests/questions which are extremely similar in nature and our clients could benefit from searching a common area for those answers. Additionally, other clients can chime in and report their experience with a particular issue or solution, etc... 
Many years now we have been commenting to our clients how great communities are for support and never have been using it to it's full potential so we are now 🙂 .
Just like in a ticket though, we will move items which fall outside our scope of support to the appropriate forum, like performance on your server, to a more suitable forum. 
Keep in mind, all support on the community is public now, that is the benefit of doing so.

You have your Spam Defense set to require moderator approval for individuals who are level 1. This is not recommended as level 1 states that this user is not a spammer. Allowing them to register normally would be recommended.
This is managed in ACP -> Members -> Spam Prevention -> Spam Defense tab.

There is nothing within the core software which would outline this information in a report like feature (i.e. here's a list of possible individuals sharing passwords/accounts). This would require some form of customization in order to achieve.

It seems you applied the files but didn't run the upgrader. You will need to run the upgrader by going to /admin/upgrade 

Unfortunately, you still left some code in ACP -> System -> Advanced Configuration -> Page Output. I have removed that for you now. You will want to insert it in: ACP -> System -> Integrations -> Google Analytics.

Please go to ACP -> System -> Advanced Configuration -> reset your custom FURLs there. This is likely the case as these have changed.

I've moved this to a ticket so that we can look into this for you. Please see your email for next steps 🙂 .

I'm afraid that there is not. Topics are generally permanent conversations, even those that are without replies and someone could respond in the future. However, if you have a use case, feel free to post this in our Feature Suggestion forum for review for further evaluation for a future release.

Could you please clarify what you mean by "Copy a topic to a frontpage?" What is "frontpage?"
This post may help to outline why it isn't available on edit, however, and may answer your other question: 
 

Does the user have a PayPal Billing Agreement (aka Subscription) setup and was that how it was paid? Sounds like that is what you are saying but it is quite odd that the payment would be so far delayed. However, if the invoice expired before payment was collected, this would be correct. As the invoice that they attempted to pay is no longer able to be paid. This is another reason why PayPal Billing Agreements are not the best as the two kind of happen separately.
You will want to issue your invoices longer or allow them to not expire, if this continues to happen.
Currently, if you collected the payment in PayPal, you will need to modify the package in Commerce to reflect what happened.

I would advise going through the guide again ensuring you've set it up. Please note that without your Facebook app in live mode, you will not be able to login as anyone other than the Facebook account that setup the Facebook app. 

Please be advised I have transferred this to a ticket so that we can assist you in stopping the renewal. In the future, you're welcome to submit a contact us request to our accounts department for assistance in this.

Please contact your hosting provider. This error is coming from your server. You likely have mod_security installed or another security module which is preventing this. Your hosting provider will need to review your server logs and either allow this particular rule that is getting tripped or disable mod_security entirely.

I'm afraid, this is intended to happen when content is edited. If you do not wish for this to happen, I would advise creating a topic in our Feature Suggestion forum to change this.

This would require customization of your theme. You could do it via the Easy Theme editor or do full on theme customization. Unfortunately, customizations are outside our scope of support but you can read how to do it in our guide.
 

I just replied to your ticket about adding your domain to your Cloud package. Please see my email 🙂 .

Please contact the author for assistance on their plugin. Third party plugins are outside our scope of support.

Sorry, I am not sure what you mean. Do you mean you want this as a custom field that displays in content or their profile? If so, yes. Please see the guide below on how to create them:
 

Yes, you will want to adjust your admin notifications in ACP -> click the notification bell (top right) -> Notification Settings -> enable what you want for "A transaction requires manual action"

Yes, this is where we can provide you technical support with our software. However, your domain is timing out. As you are self-hosted, you will need to contact your hosting provider for assistance here.

I'm afraid, it is not customizable to add a column to this table for viewing. You can, however, use the advanced search tool to search for things that match what you expect and approve those users. The advanced search can be found on this page by clicking the cog wheel in the search bar.

You can change this for everyone by going to:
ACP -> Members -> Profiles -> Display Settings -> When a member clicks an item link.
Users can override this setting by going to: Account Settings -> Content View Behavior.