Hexagonal Array Puzzle

Here is a puzzle based on an array of ten hexagons whose vertices are numbered. It is a modified version of an array used as an illustration in an article by Choe, Choi, and Moon. See the reference in the wikipedia article: https://en.wikipedia.org/wiki/Hexagonal_tortoise_problem and also thing:2586578 and thing:2591827

The sums of the numbers at the vertices of 9 of the hexagons are 99; an error has been introduced and the sum of the vertices at the 10th hexagon is 98.

1. Find the he