Could be a race condition where the find element is executing before it is present on the page. Take a look at the wait timeout documentation.

[vaibhavpacharya]

I am able to run the code locally successfully but getting this error in terminal after initial search in the browser.

 browsermod.cheatyoutubeff(query_word,s_url,max_n,x+1,min_rand,max_rand)
  File "/Users/vaibhavacharya/Desktop/Web Development/YouTube-View-increaser/support/ffyoumod.py", line 49, in cheatyoutubeff
    browser.find_element_by_xpath("//a[contains(@href,'&page="+str(x+2)+"')]"))
  File "//anaconda2/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 394, in find_element_by_xpath
    return self.find_element(by=By.XPATH, value=xpath)
  File "//anaconda2/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 978, in find_element
    'value': value})['value']
  File "//anaconda2/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "//anaconda2/lib/python2.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"xpath","selector":"//a[contains(@href,'&page=2')]"}
  (Session info: chrome=83.0.4103.116)