The phrase is Latvian for "Will launch... Please wait: 1 second."
: If this message appears on a website you don't recognize, do not click any buttons that appear after the countdown. It is common for "Wait 1 second" pages to lead to unwanted ads or suspicious downloads.
Because this is a generic system message, its safety depends entirely on you are seeing it:
If you provide the name of the service, I can give you a more detailed review of that specific tool.