hello I'm an inexperienced user. I have the following problem. When I activate the plugin, the words at the end of a sentence broken.
See the difference one on my website:
without plugin:
www.caravanshuren.nl/index.php/altea462pd

with plugin:
www.caravanshuren.nl/index.php/action-361-lh

Does anyone have a solution to this problem?
Do I need to change something in the template file?

I don't see anything like that. In both your links the galleries are enabled though. Maybe you need to Disable the plugin in order to see the issue.