Sounds like sea.dll is unable to load. You can check for that in the system.log file.
First, in the Maelstrom download, run either dxwebsetup.exe, or extract directx_Jun2010_redist.exe and run DXSETUP.exe.
Also run 2019VCRun\vc_redist.x64.exe and 2019VCRun\vc_redist.x86.exe to install the Microsoft VC runtimes.