[Python] Tkinter's Canvas - bad screen distance ""

I'm working on a paint app using Tkinter's Canvas
and recently I've been trying to get the undo/redo system in place.
but there's a crucial problem with the redo function.
it doesn't have some values to recreate the elements even though I've stored them in lists.

Here is a simplified example:

class Window(tk.Tk):
def __init__(self):
super().__init__()
...

def paint(self, event):
if self.previous_point != [0, 0]
self.line = self.canvas.create_line(..........)
self.line_group.append(self.line)
if event.type == tk.EventType.ButtonRelease:
self.line_groups.append(self.line_group)
self.previous_point = [self.x, self.y]
self.line = ''
if event.type == tk.EventType.ButtonRelease:
self.line_group = []
if event.type == '5':
self.previous_point = [0, 0]

def undo(self, event=None, custom_index=-1):
items = self.canvas.find_all()
if items:
last_group, cords = [], []
if self.points_mode.get() == 'drag':
if self.line_groups:
line_group = self.line_groups[-1]
loop_range = len(line_group) + 1
for line in range(1, loop_range):
ind = line * -1
last_group.append(items[ind])
cords.append((self.canvas.bbox(items[ind])))
self.canvas.delete(items[ind])

self.last_items.append((last_group, self.dash_groups[-1], cords))
print(self.last_items[-1])

del self.dash_groups[-1]
del self.line_groups[-1]
else:
try:
self.canvas.delete(items[custom_index])
last_group.append(items[custom_index])
except IndexError:
pass
def redo(self):
if self.last_items:
last_line, last_dash, cords = self.last_items[-1]
item_type = self.canvas.type(last_line[0])
f_color, o_color = self.canvas.itemcget(last_line[0], 'fill'), self.canvas.itemcget(last_line[0], 'outline')
width = self.canvas.itemcget(last_line[0], 'width')
self.iterate_lines(last_line, (f_color, o_color), width, last_dash, cords)
del self.last_items[-1]

def iterate_lines(self, group, colors, width, dl_size, cords):
self.canvas.update_idletasks()
for index ,l in enumerate(group):
print(l)
'''+ always returning none on the lines!
* doesnt work even when items are not deleted and just hidden'''
cords = list(cords.values())
x, y, x1, y1 = cords[index]
print(f'index {index}')
fill, outline = colors
self.line = self.canvas.create_line(x, y, x1, y1, dash=dl_size,
fill=fill, width=width,
smooth=self.smooth_line.get(), outline=outline)
self.line_group.append(self.line)
self.line_groups.append(self.line_group)
self.all_items.append(self.line_group)



return self.tk.getint(self.tk.call(
~~~~~~~~~~~~^
self._w, 'create', itemType,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*(args + self._options(cnf, kw))))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_tkinter.TclError: bad screen distance ""


This is very weird and can be the slightest error, but I've checked many probable "big" causes and didn't have luck

Aftermath: I've even tried to capture the values in their initial creation, even printed them and it all was going well, but I can't create that line with them

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