Interesting that. On the main WP admin page it throws back:
load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:9 JQMIGRATE: Migrate is installed, version 1.4.1
load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:3 The specified value “!” does not conform to the required format. The format is “#rrggbb” where rr, gg, bb are two-digit hexadecimal numbers.
ja @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:3
n.parseHTML @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:4
a.fn.init @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:9
n @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:2
(anonymous) @ spectrum.js?ver=4.7.5:56
(anonymous) @ spectrum.js?ver=4.7.5:58
(anonymous) @ spectrum.js?ver=4.7.5:2080
builder.js?ver=4.7.5:367 Uncaught TypeError: Cannot set property ‘post_id’ of null
at Object.success (builder.js?ver=4.7.5:367)
at i (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:2)
at Object.fireWith [as resolveWith] (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:2)
at y (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:4)
at XMLHttpRequest.c (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:4)
(anonymous) @ builder.js?ver=4.7.5:367
i @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:2
fireWith @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:2
y @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:4
c @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,plupload,jquery-form&ver=4.7.5:4
And I have no idea what this means!