He scored 15 league goals in 26 games, making him the third top goalscorer in the Superiore behind Vioresin Sinani and Daniel Xhafaj, but could not help his side avoid finishing in last place as he experienced relegation for the second time in his career.

On the final day of the first half of the season, he struck once again in a 7–0 thrashing of Skënderbeu, scoring twice in the opening 7 minutes in a game where his prolific strike partner Pero Pejić grabbed four goals.

Following a prolific first half to the 2007–08 season with Dinamo Tirana, where he scored 9 league goals in 16 games, he moved to Norwegian side Ham-Kam for an undisclosed fee in January 2008.

In January 2010, during the winter transfer window, Plaku completed a move to Tirana for €30,000, taking the vacant number 9 for the second part of 2009–10 season.

[10] He was released by the Flamurtari chairman Shpëtim Gjika on 19 July 2011, along with three other main players, Daniel Xhafaj, Bledar Devolli and Julian Ahmataj.

[18] Plaku begun the new campaign on 17 July 2012 by scoring his first goal in the European competitions, netting with a right-foot shot inside the box to give his team a 1–0 win at home versus Debreceni in the first of Champions League second qualifying round.

[21] He agreed personal terms with Partizani president Gaz Demi on 8 June 2015 and signed a one-year contract with the club, with the option of a further one–year renewal.

With the arrival of new coach Andrea Agostinelli, Plaku was deemed surplus to requirements as the club had Xhevahir Sukaj, Stevan Račić and Astrit Fazliu as forward options, and on 2 January 2016 it was announced that his contract was terminated through mutual consent.

[31] On 17 September, during the league match against Luftëtari, Plaku missed a penalty kick, wasting the opportunity to score Korabi's first ever goal in Albanian Superliga, as hosts won 1–0 at Elbasan Arena.

[32][33] However, he accomplished the feat in the matchday 5 against Teuta, scoring inside 30 seconds after dribbling Shpëtim Moçka to lead the club to its first ever win in Albanian top flight.

[36] On 22 December, in the final match of 2016, Plaku scored the lone goal as Korabi defeated Flamurtari at home to end the year with a consolation win.

On 5 January 2017, Ilir Daja, who was appointed the new coach of Skënderbeu two days earlier, ordered the return of Plaku in the team to increase the rivality in attack.

He made 7 appearances and scored only one goal, which came on 27 May in the final matchday of championship against Partizani as Skënderbeu failed to win the title for the first time in six years.

[43] Later on 3 August in the returning leg of third qualifying round versus Mladá Boleslav, he again came off the bench to score a late winner as Skënderbeu won 2–1 at Elbasan Arena.

[53] In the matchday 10 against Kukësi, Plaku scored a brace, including a first-half spectacular long-range strike to rescue his side a point.