Sure, I can help you with that.
There is no specific number of pay stubs that you need to submit when you reapply for Express Entry after being refused for not being employed. However, it is advisable to submit as many pay stubs as possible, especially if you are claiming points for your work experience.
The visa officer will want to see that you have been consistently employed for a period of time, and that you have a stable income. They will also want to see that your employment is relevant to the occupation that you are claiming points for.
If you are only able to submit a few pay stubs, you can try to supplement them with other documentation, such as a letter from your employer, a copy of your employment contract, or a letter of reference.
The visa officer will ultimately decide how many pay stubs they need to see in order to be satisfied that you are employed. However, by submitting as many pay stubs as possible, you will give yourself the best chance of being approved for Express Entry.
I hope this helps!