Yup, same here. It's very frustrating. I had created a separate thread but will add my summary here:
"I kept getting logged out when using the site (Chrome Incognito). Every single page I navigated to would cause me to log out and need to log in again. I investigate and noticed this happens on non-secure (HTTP) site. But I log into secure site (HTTPS) every time. It appears that when I search (regular or advanced search) the results are always served on HTTP, and never HTTPS even though the search page itself is https (e.g. /search.php returns me to http://indo-investasi.com/search.php?searchid=1527858). The same scheme (in this case HTTPS) should be used for search results"