hi abbas! @onlysadeghi,
.
.
I have the same problem! wordpress version is 5.0.1.
please fixed it.
thanks
@wfyann
yes, i tried and install it from scratch but get this error again.
in local and another website was the same.
i checked “wfConfig.php” is not in this folder “wp-content/plugins/wordfence/lib/”.