Currently, some Huawei phones do not display a map. Instead, it says "Google Play services are updating." This is not a bug of the Sportractive app but of the Google Play Services.
The problem can be solved as follows: p>
Android Settings / Apps / Google Play Services / Storage. Select manage space at the bottom and erase everything. Then delete cache of Google Play Services.
IMPORTANT: DO NOT DELETE THE SPORTRACTIVE MEMORY OR CACHE! YOU WILL LOSE ALL SPORTRACTIVE DATA!