Explanation
The server has reached the maximum number of ui sessions, as defined by the System Property mxe.webclient.maxuisessions, so no more sessions will be permitted until ui sessions are freed up by timing out or other users log out.
Action
Action
Increasing the System Property mxe.webclient.maxuisessions value is one way to prevent this message but at the risk of performance and out of memory problems. If this happens frequently, adding another maximo server to the environment should be investigated.