Dani,
I did a clean wipe of the site today since I hadn't done any visual changes to it.
Downloaded the 4.5 files from the download section on the webasssit site and uploaded them. Was successful in installing and getting to the admin section.
I am having the same issue when I try and "edit theme" on the default theme. Here is the error:
PHP Warning: Illegal offset type in isset or empty in D:\home\acalamedical.com\wwwroot\webassist\plugins\styler\filebrowse.php on line 15
PHP Warning: Illegal offset type in D:\home\acalamedical.com\wwwroot\webassist\plugins\styler\filebrowse.php on line 19
PHP Warning: Illegal offset type in isset or empty in D:\home\acalamedical.com\wwwroot\webassist\plugins\styler\filebrowse.php on line 15
PHP Warning: Illegal offset type in D:\home\acalamedical.com\wwwroot\webassist\plugins\styler\filebrowse.php on line 19
Please advise.