Yes. Foam, standing water and actual liquid flow are different observations. The product and quantity used can provide useful context.
What the observation means
Do not infer a failed motor solely because bubbles remain around a shower drain. Equally, foam does not make poor drainage safe to ignore.
A useful next step
Follow the unit's permitted-product guidance and avoid adding more cleaners. If wastewater is not clearing, stop using connected fixtures and seek assessment. Retain the product details rather than pouring hot water or another chemical through the pump to reduce foaming.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.