hello
after manualy update from 1.7.8.2 to 1.7.8.7 and according to devdocs , i ran the page http://<shop_domain>/install/upgrade/upgrade.php
but i get the a white page with the following text :
This XML file does not appear to have any style information associated with it. The document tree is shown below.
<action result="error" id="28"/>
how sholud i solve this issue ?
thanks