These errors mean amino acid translation for CDS (protein coding sequence) feature is not appropriate in the 5’ or 3’ end, respectively. When the CDS feature is not complete (i.e. partial) at 5’ and/or 3’ ends, its location is required to include flag for ‘not complete’. According to rules on Description of Location, partial sequences should be appropriately specified with flags for 5’ end not complete, “<”, and/or for 3’ end not complete, “>” on its feature location.

location condition
<1..295 [not start with initiation codon] and [stop with termination codon]
1.. >295 [start with initiation codon] and [not stop with termination codon]
<1.. >295 [not start with initiation codon] and [not stop with termination codon]

For example: partial CDS feature in the range, 1..295

References
How to fix error message: “Stop codon ‘*’ is found in the range.”?
How to fix error message: “Value of [ codon_start ] is not 1, but [
Offset of the frame at translation initiation by codon_start