I apologize for the inconvenience you are facing while trying to access the assertion and reason questions. To help you resolve this issue, let's break down the problem into different sections and discuss possible solutions.

1. Understanding Assertion and Reason Questions:
Assertion and reason questions are a type of question commonly found in various exams, including Class 6. In these questions, you are given an assertion (a statement) and a reason (explanation) for that assertion. You need to determine whether the reason provided justifies or supports the given assertion.

2. Possible Causes of Error:
There could be several reasons why you are encountering an error while opening the assertion and reason questions. Some possible causes include:
- Technical issues with the website or platform you are using.
- Browser compatibility issues.
- Server errors or maintenance activities being performed on the website.
- Incorrect URL or navigation pathway.

3. Troubleshooting Steps:
To resolve the error and access the assertion and reason questions, you can try the following troubleshooting steps:

Clear Browser Cache:
Sometimes, stored cache files may cause conflicts and prevent webpages from loading correctly. Clearing your browser cache can help resolve this issue. Here's how you can do it:

1. Open your browser's settings.
2. Look for the "Privacy" or "History" section.
3. Find the option to clear browsing data or cache.
4. Select the appropriate time range and clear the cache.

Try a Different Browser:
If clearing the cache doesn't work, you can try accessing the questions using a different browser. This will help determine if the issue is specific to your current browser or a more general problem.

Check Internet Connection:
Ensure that you have a stable and reliable internet connection. A weak or intermittent connection can cause errors while loading webpages.

Verify URL and Navigation:
Double-check the URL you are using to access the assertion and reason questions. Make sure it is correct and leads to the intended page. Additionally, ensure that you are following the correct navigation pathway within the website to reach the questions.

Contact Support:
If the error persists after trying the above steps, it is advisable to contact the website's support team or the platform administrator. They will be able to assist you further and provide specific guidance based on the issue you are facing.

In Conclusion:
Assertion and reason questions are an important part of the Class 6 curriculum. If you are encountering an error while trying to access these questions, follow the troubleshooting steps mentioned above. Clearing browser cache, trying a different browser, checking your internet connection, verifying the URL and navigation, and contacting support are some of the actions you can take to resolve the issue and access the questions successfully.