The previous reload command didn't finish yet

Asterisk: 1.6.2.13
FreePBX: 2.8.0.4

I added a user using the Administrators module. I clicked on the Apply configuration changes, then clicked on continue with reload. The orange box just hangs. I restarted Apache because I couldn’t get back into FreePBX. Now that I am back in there, whenever I make changes, I get the message “The previous reload command didn’t finish yet.” How do I fix this?

Thanks.