London (CNN Business) Adidas has a good kind of problem: It can't make enough apparel to meet demand.

The German sportswear company said Friday that supply chain shortages are making it difficult to meet a sharp increase in consumer demand for its mid-priced apparel.

Adidas ADDDF The shortages limited sales growth in the first three months of the year to 4%.said the issue could knock up to two percentage points off sales growth this year, restricting it to between 5% and 8%.

Adidas did not provide details of the supply problems or the products affected in its earnings statement and a spokesperson declined to comment further.

Yet investors cheered the company's results, which revealed a 40% increase in online revenue and a 16% sales spike in greater China. First quarter operating profits were up 17%.

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