1)If you want to change the text of the Thank you page after login then follow the some step.

STEP1)first of all open the admin section bu entering the username and password

STEP2)After that go to the Appearance option in the right section and click on the Widget

STEP3)After that go to the left section and click on the Thank Page Text.

STEP5)Then click on the Text and you can change the text and click on the save button

2)If you want to change the text of the Thank You Text Page the follow the same process as above.STEP)for that go to the right section and click on the Thank You Text and then click on the Text and then you can change the text and click on the save button