Incorrect token

Hello, I am new in the area and have the following problem.
I have a WEMOS D1 mini and would like to realize with Blynk a Projet. Unfortunately, I always get the message that the token is invalid.
I have several times requested a new one and tried but not come further. Can anyone help me?
The token at the time is: e51bb82380724ec79a89590d32faeb71

Have you inserted that current token (as listed in your app project) into your sketch installed in the Wemos?

char auth[] = "e51bb82380724ec79a89590d32faeb71"; // Note the need for the quotes " "

Hi. Trank you for your answer. I have found the misstake. My Internetconnetion was wrong configured. Now it runs.