I am using IE-11 with window 8.1 without any problems including all activities of our websites.

Is your Window 10 culprit??   KJ

I use Windows 10 for a long time and had no problems until yesterday.
Anyway, the problem seems to be limited to my computer.
That's good !!
I can take care of the website without using my IE-11.

I have one question for you.

When I use google chrome as my browser, I can open our websites,but
I can not do any other activities like commenting and writing,etc.

Is google chrome compatible with snucmaa.us? If yes,then How can I
solve this problem?   KJ

In IE, we use "Compatibility setting" to write at our website.
This seems to be because of our website being behind the progressive updates of Windows, HTML, and Internet browsers.
This problem doesn't seem to be avoidable because our (and a lot of other websites as well) website
was built under the older HTML and browser standards which had been partially outdated for the last few years.
Our website is based on HTML version 4, while newer standards are based on HTML ver 5.

Only way we can overcome this deficits are to update the entire website by using newer website program.
that are based on HTML version 5.
This is what I am working on. It will take a few months to completely remodel our website.
I was going to do it during this winter but I didn't have time.

I do not know if there is compatibility setting in Chrome.
Due to unwanted display of our website in Chrome, I have not used it.
Chrome, Firefox, and etc. is not exactly compatible with our website.
In them, the website does not get displayed as it was originally programmed.

I have been using Maxthon where there is compatibility setting with no problems.
Maxthon and MS-IE are the only ones that can adjust compatibility for our website.
If one of you have trouble working with Internet explorer, please try Maxthon.
Even in Maxthon, you have to adjust the compatibility before it works with our website.
If any problems, please write me. I can help you.

Thanks for your explanation.

I have checked that google chrome doesn't have compatibility view setting like IE.
I don't have any problem with IE at this time.   KJ