There are several reasons why a Facebook account may be blocked, including but not limited to:

• Violating Facebook’s terms of service, such as posting content that is violent, hate speech, or spam.
• Engaging in suspicious or fraudulent activity, such as creating multiple fake accounts or hacking into other accounts.
• Being reported as fake or impersonating someone else.
• Abusive behavior towards other users, such as bullying or harassment.
• Sharing of copyrighted or trademark-infringing materials
• Continued Violation of policies

It’s worth noting that if Facebook determines that your account has been compromised (e.g., hacked), they may block it as well in order to secure it.

How to unblock the account

In order to unblock a Facebook account, you can try the following steps:

1. Go to the “Help” section on the login page of Facebook
2. Click on the “Learn more” link under the “Account locked?” section
3. Follow the instructions provided to verify your identity, such as confirming your email address or mobile phone number
4. If prompted, provide a government-issued ID to confirm your identity
5. Once your identity is confirmed, Facebook will review your account and may lift the block if it was placed in error

It is also worth noting that account blocks can also happen when certain activity violates the Facebook community standards and policies, such as posting inappropriate content, or creating multiple accounts or fake account, in such scenario the account might not be unblocked.

Cannot share?

There are several reasons why you may not be able to share posts on Facebook. Here are a few possibilities:

• Your account has been blocked or banned by Facebook. This can happen if you violate the site’s community standards or policies, such as by posting spam or abusive content.
• Your account has been deactivated or deleted. If your account is deactivated, you will not be able to access it or post anything until you reactivate it. If your account has been deleted, it cannot be restored, and you will need to create a new account if you want to use Facebook again.
• Your privacy settings are preventing you from sharing posts. You may need to adjust your privacy settings to allow you to share posts with the people you want to share them with.
• You are trying to share a post from an account which is blocked or restricted by you.

5. There is a technical issue with Facebook, which may prevent you from sharing posts. Try to refresh your browser and wait for a few minutes to see if the issue resolves itself.

In general, If you’ve attempted all the above and are still unable to share the post, it is best to contact Facebook’s customer service team for more detailed information regarding your account, and what you can do to resolve the issue.

Cannot invite more friends?

There are several reasons why you may not be able to invite friends on Facebook:

• You’ve reached the friend limit: Facebook has a limit on the number of friends that you can have. The limit is usually around 5,000 friends, but it can vary depending on your account. If you’ve reached the limit, you won’t be able to send any more friend requests until you remove some friends from your list.
• Your account is blocked or has been flagged for spammy behavior: Facebook has strict policies against sending too many friend requests or sending them to people who do not know you. If your account is blocked or flagged for spammy behavior, you may not be able to invite friends until the block is lifted or you’ve resolved the issue.
• Privacy settings: you might have set your account’s privacy settings so that only friends of friends can send you friend requests, this setting can prevent people to invite you.
• Technical issues: there may be a temporary technical issue with Facebook that is preventing you from inviting friends. Try refreshing your browser and waiting a few minutes to see if the issue resolves itself.
• Your account has been restricted by facebook from inviting friends due to previous violation of rules.

If none of these seems to be the reason, you can contact the Facebook help center for more information about your account and what you can do to resolve the issue.