This has most likely been done due to the presence of broken links on the page (due to either outdated links or outright linking to nonexistent pages), usage of deprecated infobox parameters, and/or the general inactivity of said user (defined as no edits for at least 1 year, although exceptions can sometimes be made).
If this is your userpage, then you can retrieve the contents of this page in the
page history. Images formerly on your page may have been deleted, so
contact the wiki administrators to have them restored.
However, keep in mind that it is
your responsibility to make sure links, files and templates you have placed on your userpage continue to point to the pages they are intended to, as well as that your userspace is free of scripting errors and other errors which may cause your userpages to be added to maintenance categories. Failure to fix these may result in subsequent re-blanking.
Please do not revert this if you are not the owner of this userpage,
even if the user in question has began contributing since its addition.