I am not telling that you have to deactivate permanently , just want to check if the issue is related to one of the plugins.
You need to deactivate all plugins once and check if that issue goes away or not , if it works then you have to activate each plugin one at a time and thus we can find the wrongdoer.
sorry but i don’t really know how to fix our blog, can i just give you our temporary login and then maybe you can help us fix it? would really appreciate it, thanks.