(https://support.createaforum.com/proxy.php?request=http%3A%2F%2Fwww.hizliresimyukle.com%2Fimages%2F2018%2F11%2F04%2FEkran-Alintisi345345.png&hash=04dc5a7119d91c7b49a57d021a0f0308e10960bc)
But I still can't send personal messages
(https://support.createaforum.com/proxy.php?request=http%3A%2F%2Fwww.hizliresimyukle.com%2Fimages%2F2018%2F11%2F04%2FEkran-Alintisi45645456.png&hash=da615ac4e53dcfa5a08e52ab78408db13c564286)
Thank you for your interest. I found the solution to the problem.
Manage Permissions>General Permissions> Contact members using the personal messaging system
(https://support.createaforum.com/proxy.php?request=http%3A%2F%2Fwww.hizliresimyukle.com%2Fimages%2F2018%2F11%2F04%2F3435453453.png&hash=bdaa772bb5b0150db554d539b865f3e2214244a6)