I installed the One Page Checkout Extension from IWD which works fine so far. But thereÂ´s a problem with the agreements, which are not shown correctly. Normally a lightbox popup should come up showing the appropriate text, but the popup only shows a line of code (see attachment).
The mentioned block exists and has the correct identifier, it is also set for all store views. Could somebody point me to the right direction what the problem could be?
Click thumbnail to see full-size image