If you are running into the error 138 means your permission to access your network is being denied.
There are numerous things that can cause this. The following are some of the more common things that can result in access to network being denied issue.
If you have proxy software setup (if you're using a work computer, etc.). You may want to try from another computer without the proxy, or if you can try turning it off and testing it.
If you are on a shared network maybe check your permissions and settings.
Your computer may have parental software installed. You may want to try from another computer without the proxy, or if you can try turning it off and testing it.
If you have an antivirus, malware program, or firewall it could be blocking Curse as a false positive.
Make sure that your copy of the Curse app is from https://www.curse.com/download or if you received a link directly from a verified Curse agent.
Once you have made sure you have a legitimate copy of Curse, try temporarily disabling your security software to see if it is causing the issue.
This issue can also be caused by malware, viruses, or other malicious software on your computer. We suggest doing a thorough scan of your system to check for any nasties.
Try hitting F5 while having Curse your focused window. This will refresh it for you.
Try cleaning our your cookies in your browsers. If you need help with how to do that check out our guide on how to do so here.