Use try except statements for all plots

The program should not be terminated if one of the plots raises an error, instead, a logging message would be sufficient. Therefore, we should use try-except statements for plots.

added To Do technical labels

added forthcoming label and removed To Do label

added Doing label and removed forthcoming label

assigned to @leufen1

changed time estimate to 20m

created merge request !209 (merged) to address this issue

mentioned in merge request !209 (merged)

added .done label and removed Doing label

added 17m of time spent at 2020-12-10

mentioned in commit 32b3f35b

added merged in Develop label and removed .done label

mentioned in commit cf6bca9d

closed with merge request !225 (merged)