It has a compatibility problem with one of the plugin required by the theme, the theme I’m using is from wpthemego. Already inform them, see what they say. could you also have a look into it to solve the compatibility? Thanks
I deactivated all plugin and woocommerce (latest plugin installed) prompt to update database. Everything is good when I activated plugin few by few. But there is one time that the problem suddenly come back and then problem gone. This is very weird. Hopefully the problem is solved for good.Thanks for the advice.