The most problems occur with the usage of plugins. The first step should also be to deactivate all plugins and see if the error(s) were caused by one of the plugins you use. Then, activate the plugins step by step, and after each plugin activation, take a look at the problem. As soon as the problem occurs again, you’ve found the problematic plugin. Due to the fact that more than 95% of all problems our clients tell us about are caused by plugins, this should always be the first step in your troubleshooting.
Posted in: Common errors, Trouble-shooting