There could be several reasons for this. The member may have blocked you, or they may have their messaging settings set to private. It is also possible that there is a technical issue with the platform.
If you are unable to send messages to a specific member, it is possible that they have blocked you. You can try searching for their profile and if you are unable to find it, it is likely that they have blocked you.
Yes, it is possible for a member to receive messages from another member even if they are unable to send messages to them. However, if the member has also blocked you, then you will not be able to receive messages from them.
You can check your messaging settings in your account settings. Make sure that your messaging privacy settings are set to allow messages from all members. If this is not the issue, you may need to contact the platform's support team for further assistance.
Yes, most platforms have a feature to report members for various issues. If you are unable to message a member, you can report the issue to the platform's support team and they will investigate the issue further.