Gotta be more specific. Any file paths along with the errors? If you don't see much, switch error reporting to "maximum" in Joomla's global configuration.

"and i don't want to install the update again"

I didn't say that. I asked for specific errors. A memory limit issue can come from anywhere...

I think this is a side-effect. The line shown is where K2 does the replacement for missing opengraph tags in the entire document. It's hardly hogging any limits...

Try bumping your PHP's memory_limit value to 300M or more, just in case.

So the issue is on localhost?

You confused me with your last comment on Firefox usage...

In any case, like I said, what you saw before is a side-effect. K2 does not require high memory limits because it does not perform any GD (or other memory demanding) operations. When you bumped the memory limit, a JCH error appeared. Disable JCH and any other "performance" plugins to see if things behave better. I mention "performance" plugins because I've seen plugins from other providers that would "inline" images on page load which can be very memory intensive on sites with lots of images.