Can't find definition of model
Your problem is likely that you haven't set the voltage source correctly.

I assume, that you have added the line SINE(0 15 1k 0 0 0) as a spice directive instead of changing the voltage source. (At least that way I get a similar error).

So instead of adding this line as a text (or spice directive), right click on the voltage source, select advanced, then select the radio button labeled sine and type in the required numbers.

It should look like this:


After this, you have to delete the existing SINE(0 15 1k 0 0 0) line, otherwise it will still upset the simulator.

Now what often happens is that the text will overlap with some part of your schematic making it ugly to look at. You can use the drag or move tool and click on the offending text to move it around:



And make it look like this:



If this answer did not solve the second error as well, please leave a comment and I'll try to figure that out as well.