If you get TokenExpired message right after logging in to your App, please access to your WordPress folder -> Opening .htaccess -> Put the following code to this file.

<IfModule mod_rewrite.c>
SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
</IfModule>

Note that the above code must be outside of 

# BEGIN WordPress

# END WordPress 

 

Wrong

# BEGIN WordPress

<IfModule mod_rewrite.c>
SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
</IfModule>

# END WordPress 

Correct:

# BEGIN WordPress
.....
# END WordPress 
<IfModule mod_rewrite.c>
SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
</IfModule>

Or you can put the 

SetEnvIf Authorization “(.*)” HTTP_AUTHORIZATION=$1

to apache configuration like this:

<VirtualHost>    
 # ...     
SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1     
# ... 
</VirtualHost>

If you still face this issue, Please contact your hosting provider to report this issue.