I just noticed that the Heteroptera version that you support and the one you have in your zip file with the supported versions are not the same.
In your zip file from: https://support.shapediver.com/hc/en-us/articles/360015208052-List-of-supported-third-party-Grasshopper-plugins under “download it here” you have Heteroptera version 5.8.5, but than it complains that only up to 5.2.6 is supported!??!
Could you either update to support 5.8.5 or let us know where we can download version 5.2.6 that would be great.
The only available versions from Food4Rhino are 0.6.2.2 or 0.4.9.4, so not sure where the 5.8.5 or 5.2.6 comes from.