fix: generation of F001 json and md reports fixed

Description

In some cases, the generation F001 .md failed. 2 reasons were identified:

1. When we cannot get data, we generate wrong JSON file.
2. If for one of the hosts there is no data, an error occurs during .md generation.

Both cases were fixed.

• the MR description has been reviewed
• this MR contains text changes and they have been reviewed OR there are no texts changes
• this MR contains GUI/CLI changes and they have been reviewed OR there are no GUI/CLI changes
• this MR contains API changes and they have been reviewed OR there are no API changes