Publisher node for Flaot64MultiArray message type does not publish to subscriber node

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I made a test code to see if a node I create actually publishes Float64MultiArray message type to my created topic zones. When I run my publisher node as can be seen in my repo here, and I rostopic echo /zones I see that the topic has been created and is being published to. The code seen below has the test subscriber node and when ran does what it's supposed to do(which is to subscribe to zones). It also succesfully subscribes o the topic.

#!/usr/bin/python3
import rospy
from std_msgs.msg import Float64MultiArray
from rospy.numpy_msg import numpy_msg
import numpy as np

#v=Float64MultiArray()
#def callback(msg):

class num:
    def __init__(self):
        self.data=Float64MultiArray()
        self.doen=[0,0]
    def callback(self,msg):
        #print(msg)
        self.doen=[msg.data[0],msg.data[1]]
        #print(msg.data[0])
        #print(self.data.data[0])

    def get_it_done(self):
        rospy.init_node("array_listener")
        #v=rospy.wait_for_message("zones",Float64MultiArray)
        rospy.Subscriber("zones",Float64MultiArray,self.callback)
        #rospy.spin()
        while not rospy.is_shutdown():
            print(self.doen)


regis=num()
regis.get_it_done()

I have thus tried to use this concept for the actual code I'm working on. I even used the same callback I used as seen above. For whatever reason though, the publisher node for zones topic is unable to communicate with the sybscriber node. m rqt_graph shows that my subcriber node is not subscribed at all. I have no clue why please see the script that contains my subscriber node in my repo here. To not waste time, please focus on the callback function choose_marker. and the segment of code in the function ArnoldLogistic_coverage, that's giving me the issue:

m_storage = n_storage+1
            print("new set")
            if self.memory>40:
                print("map_zoner")
                print("data_to_send", data_to_send)
                self.goal.pose.position.x = self.data_to_send[0]
                self.goal.pose.position.y = self.data_to_send[1]
                self.pub.publish(self.goal)
                rospy.sleep(0.5)
                reach = len(self.route)
                while reach >= 19:  # 19
                    self.pub.publish(self.goal)
                    rospy.sleep(0.5)
                    reach = len(self.route)
                    print("reach: ", reach)

The error that runs when the if statement is satisfied is an indexError that states that self.data to send is still an empty list(because the nodes aren't communicating). My rqt_graph also shows no communication. I have no clue whats going on. I had thought the issue was perhaps I was running the both nodes under the same launch file. separating them did nothing.