Soundstage gone

Dumb question time. Have you accidentally pressed the mono button on your amp? That would do it every time. ;-)

The Urika II phonostage converts signal to digital domain and then performs RIAA corrections according to a quick perusal of the product online.  To me this is a strange way to enjoy analog, but in truth I know nothing about the product and the technology.   Not cheap at $3750.  Good luck.

for newbee:
In my amp all the buttons locate in front of pannell, so no, mono is off.
for flatblackround:
My phono stage is completely analog Urika, not Urika II.

Sounds like your cartridge is short of wack, or out of wack.  But make sure the table and platter are level and the arm tube is parallel with the record surface.  That's a start.  

Make sure the cartridge cantilever is a straight and not an an angle with the centerline of the cartridge body.  Make sure the VTF is within the manufacture's recommendation. 

Using a cartridge mounting / set-up template or protractor, align the cartridge paying attention to the cantilever and stylus position.  Do not worry about the edges of the cartridge, just the cantilever and stylus.  

Recheck the VTF.

Start playing with VTA / SRA.  Start with the arm parallel with the record surface and make small adjustments to raise of lower the arm pivot to change the VTA / SRA.   

When you think everything is good, recheck level and VTF.

It's a bit time consuming, but will get you the best results you can get with the cartridge.

It sounds like your system is out of phase if sounds are coming from all over and there's no soundstage. As suggested double check your cartridge leads.