As far as I can see, the problem here is that your files contain characters in their names that are unsafe to use online / in URLs. Specifically, the issue is the plus-sign ("+"), as in "mikulas_trust_
+050.jpg" and so forth.
To make your script safe for web-use, replace the "+" in both the file names and the respective file references in the script, i.e., rename
"mikulas_trust_
+050.jpg" to e.g. "mikulas_trust_plus050.jpg" and change
<picture nontwface2leftgap2>
/ items = ("mikulas_trust_-100.jpg", "mikulas_trust_-050.jpg", "mikulas_trust_plus000.jpg", "mikulas_trust_plus050.jpg")
...
</picture>
accordingly .
(For consistency reasons, I would do the same for the minus-sign, although "-" is not an unsafe character.)
Hope this helps.