Translate the following sentence to German:
SMEs' cash flows are disrupted and the problem is worse when trading across borders in the single market.

German:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Der Cash-Flow der KMU wird unterbrochen, und beim grenzüberschreitenden Geschäftsverkehr im Binnenmarkt ist das Problem noch gravierender.