This is for 3.6 but it applies to 3.7 as well:
https://www.povray.org/documentation/view/3.6.1/600/
Adding the LGEO path to the "[Permitted Input Paths]" should fix your issue.
https://www.povray.org/documentation/view/3.6.1/600/
Adding the LGEO path to the "[Permitted Input Paths]" should fix your issue.