It's encoding issue. Before copying it from source decode it properly by this tool. After decoding, you can see clean url. /ops/eda/ppriskmgt/RiskWiki/Step 1 Create Screening.as‌​px

Resolution: Update all corrupted links.

It's encoding issue. Before copying it from source decode it properly by this tool. After decoding, you can see clean url.

Encoded URL: /ops/eda/ppriskmgt/RiskWiki/Step%201%20Create%20Screening.as‌​px
Decoded URL: /ops/eda/ppriskmgt/RiskWiki/Step 1 Create Screening.as‌​px

Resolution: Update all corrupted links.