# First time trying to use Pinegrow **URL:** \ **Category:** Questions\ **Created:** [September 6, 2022, 5:53pm UTC](https://forum.pinegrow.com/t/first-time-trying-to-use-pinegrow/6907 "2022-09-06T17:53:24Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Schismaticschematics](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.pinegrow.com/schismaticschematics/32/4725_2.png) [@Schismaticschematics](https://forum.pinegrow.com/u/Schismaticschematics)\ **Post date:** [September 6, 2022, 5:53pm UTC](https://forum.pinegrow.com/t/first-time-trying-to-use-pinegrow/6907/1 "2022-09-06T17:53:24Z")
I have bought the one-time licence version of Pinegrow after having looked at the demo (no problems running that). I am running on Linux (Debian). Now, with the full activated version, I am getting an error message: **The internal webserver is not accessible at undefined.** Error received: `TypeError: Failed to execute 'fetch' on 'Window': Failed to parse URL from http://:40000/pginternal/detect` I have done various searches for solutions and also tried to open a port in the firewall, as suggested, but no joy. On the Pinegrow [website](https://pinegrow.com/docs/troubleshooting/troubleshooting.html) it says to try pointing my browser to [http://127.0.0.1:40000/](http://127.0.0.1:40000/) and “You should get a short **404 - Not found** message if the web server **is accessible**. If that’s the case contact us about the issue.”, which is the case. I will contact support, but also asking on the forums for any possible help. Many thanks. ---
**Author:** ![Schismaticschematics](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.pinegrow.com/schismaticschematics/32/4725_2.png) [@Schismaticschematics](https://forum.pinegrow.com/u/Schismaticschematics)\ **Post date:** [September 6, 2022, 6:07pm UTC](https://forum.pinegrow.com/t/first-time-trying-to-use-pinegrow/6907/2 "2022-09-06T18:07:42Z")
apologies, I seem to have sorted it out very quickly! I simply typed ‘hostname’ in a terminal and then entered the result in the Pinegrow settings (it was blank). This seems to have sorted it out.