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I am trying to click on the "Next" button of a webpage, but I'm receiving an error.
The steps I took to reach the table:

1. Go to ibl.mdanderson.org/fasmic/#!


2. Type and select AKT1 (3 mutations) (NOTE:'GO' button doesn't work, please click the option from the drop-down)


3. Click on the green button with the text 'MS', a new table will appear.


4. In this new table, there will be a tab called literature.


5. At the end of the literature tab, there will be a "Next" button to go to the next page.

I need to parse data from the literature tab(which works perfectly). However, I cant go to the next page to parse data from the same table.

Following is the code:

driver.find_element_by_xpath("//*[contains(text(),'Literature')]").click()
 for elements in driver.find_elements_by_css_selector("#literature_div [ng-repeat]"):
 print(elements.text,"n")
 driver.implicitly_wait(5)
driver.find_element_by_xpath('//a[@ng-click="selectPage(page + 1, $event)"]').click()

After executing this, I get the following error:

"Message: The element reference of is stale; either the element is no
longer attached to the DOM, it is not in the current frame context, or
the document has been refreshed"

At the end of literature tab try

driver.find_element_by_xpath('/html/body/div/div[2]/div[2]/div[1]/div/div/div[3]/div/div/div[5]/div/ul/li[7]/a').click()

Have you tried

driver.find_element_by_css_selector('[ng-click="selectPage(page + 1, $event)"]').click()

You can improve but this works for the click (Assuming I am targeting the right Next)

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

url = "https://ibl.mdanderson.org/fasmic/#!/"
d = webdriver.Chrome()
wait = WebDriverWait(d, 10)
d.get(url)
d.find_element_by_css_selector('[type=text]').send_keys('AKT1 (3 mutations)')
d.find_element_by_css_selector("input[type='text']").send_keys(Keys.RETURN)
btn = wait.until(EC.visibility_of_element_located((By.CSS_SELECTOR, ".btn.btn-default.btn-tab-avail")))
btn.click()
d.find_element_by_css_selector("[heading=Literature]").click()

ele = wait.until(EC.text_to_be_present_in_element((By.CSS_SELECTOR, "#literature_div [ng-repeat]"), "PMID"))
eles = d.find_elements_by_css_selector("#literature_div [ng-repeat]")

d.find_element_by_css_selector('[ng-click="selectPage(page + 1, $event)"]').click()

#d.quit()