Collision detection problem using TNT Collision engine

I have this piece of code to detect collision between an object 'sechand' which is rotating and a character which is translating along boundary of ellipse. Now, I am using TNT collision Engine to detect collsiions. It does detect collision but only if I never jump the character, Once I jump it, it never detects the collision happening any time in the game .I
have attached the snapshot in this post as well.
Please help me fix this



if playertouch then
speed = 10
angle2 = 30
speedx = math.cos(20)
speedy = math.sin(130)
velocityx = speed*speedx
velocityy = speed*speedy
point = tntCollision.pointToObox
x = x + velocityx
y = y + velocityy
self: setScaleY(1.8)
if point (x, y, sechand:getX(), sechand:getY(),206, 64, sechand:getRotation()) then
tntCollision.setCollisionAnchorPoint(0.2257, 0.5)
end

elseif playertouch == false then
x = x - velocityx
y = y - velocityy
x = 215 + math.cos(angle)*195
y = 130 + math.sin(angle)*115
self:setScaleY(1)
if point (x, y, sechand:getX(), sechand:getY(),206, 64, sechand:getRotation()) then
tntCollision.setCollisionAnchorPoint(0.2257, 0.5)
end
else
x = 215 + math.cos(angle)*195
y = 130 + math.sin(angle)*115
if point (x, y, sechand:getX(), sechand:getY(),206, 64, sechand:getRotation()) then
tntCollision.setCollisionAnchorPoint(0.2257, 0.5)
print('end of game')
end
end
self:setPosition(x,y)