Network not avalible

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Algodoo says that my network is not available when opening the new scene menu, load scene menu, components menu but not the algobox menu. I tried fix this with a reset but it's still not working. (how do I post an image here?)

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I almost forgot to tell that I am on a MacBook Air, running MacOS High Sierra(10.13.3)with 1.4 GHz Intel Core i5 processor, 8GB memory, with a Intel HD Graphics 5000 1536 MB graphics processor.