I get this error. The only search result I found related to Twig, but just reporting it in case anyone else is suffering the same issue.
An exception has been thrown during the compilation of a template ("Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)`") in "@gantry-admin/pages/configurations/styles/styles.html.twig".
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Please would you post your URL, superuser id and pswd in the secure tab of your post and I'll have a look for you.
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