This is the 10349th most frequent German word.
problemchen
A small problem.
The use of 'Problemchen' here infers a minor, probably easily solvable issue, emphasizing that it is not seen as critical.
Ich habe ein kleines Problemchen mit meinem Computer.
I have a little issue with my computer.
'Problemchen' is used to reassure that the situation is manageable and perhaps not worth significant concern.
Dieses Problemchen wird schnell gelöst sein.
This little problem will be resolved quickly.
The term 'Problemchen' downplays the severity of the problem, suggesting it is not something major or worrying.