You can see a list of the reasons you got this spam score here: https://moz.com/researchtools/ose/spam-analysis/flags?subdomain=www.naturesouq.com
Low MozTrust or MozRank Score
The site link profile is not trustworthy.
Ratio of Followed to Nofollowed Domains
The ratio of followed to nofollowed domains linking to this subdomain is outside the normal range of others in our index.
Ratio of Followed to Nofollowed Subdomains
The ratio of followed to nofollowed subdomains linking to this subdomain is outside the normal range of others in our index.
Large Site with Few Links
We found very few sites linking to this site, considering its size.
Small Proportion of Branded Links
Links to this subdomain have low amounts of branded anchor text.
Thin Content
A subset of pages within this subdomain have little content.
Large Number of External Links
A subset of pages within this subdomain has a large number of external links.
External Links in Navigation
There's a large number of external links within sidebars and footers.
How can you lower your spam score? Some might be easier, i.e. removing external links in the navigation. Based on the points listed, it sounds like you might have some issues with your backlink profile, on-site links and (thin) content.