* Fixed uninitialized struct fields bug leading to random errors.
* perf: keep track of the ddts older than 4 weeks).
* perf: sum ddts to compute total downloads instead of LP query.
* Fixed uninitialized struct fields bug leading to random errors.
* perf: keep track of the ddts older than 4 weeks).
* perf: sum ddts to compute total downloads instead of LP query.